diff --git a/src/components/AccountPage/EmptyStateAccount.js b/src/components/AccountPage/EmptyStateAccount.js
index 0cc89db6..f219e628 100644
--- a/src/components/AccountPage/EmptyStateAccount.js
+++ b/src/components/AccountPage/EmptyStateAccount.js
@@ -54,4 +54,10 @@ class EmptyStateAccount extends PureComponent<Props, *> {
   }
 }
 
-export default compose(connect(null, mapDispatchToProps), translate())(EmptyStateAccount)
+export default compose(
+  connect(
+    null,
+    mapDispatchToProps,
+  ),
+  translate(),
+)(EmptyStateAccount)
diff --git a/src/components/AccountPage/index.js b/src/components/AccountPage/index.js
index a57f54e6..c7f6b139 100644
--- a/src/components/AccountPage/index.js
+++ b/src/components/AccountPage/index.js
@@ -188,4 +188,10 @@ class AccountPage extends PureComponent<Props, State> {
   }
 }
 
-export default compose(connect(mapStateToProps, mapDispatchToProps), translate())(AccountPage)
+export default compose(
+  connect(
+    mapStateToProps,
+    mapDispatchToProps,
+  ),
+  translate(),
+)(AccountPage)
diff --git a/src/components/Breadcrumb/index.js b/src/components/Breadcrumb/index.js
index 4fb9b983..bf8c3ba7 100644
--- a/src/components/Breadcrumb/index.js
+++ b/src/components/Breadcrumb/index.js
@@ -54,7 +54,7 @@ const Bar = styled.div`
   }
 `
 
-const indexToPurcent = (index, itemsLength) => 100 - 100 / (itemsLength - 1) * parseInt(index, 10)
+const indexToPurcent = (index, itemsLength) => 100 - (100 / (itemsLength - 1)) * parseInt(index, 10)
 
 type Props = {
   currentStep: number | string,
diff --git a/src/components/DashboardPage/EmptyState.js b/src/components/DashboardPage/EmptyState.js
index 48bf8fc8..6cb66302 100644
--- a/src/components/DashboardPage/EmptyState.js
+++ b/src/components/DashboardPage/EmptyState.js
@@ -77,4 +77,10 @@ export const Description = styled(Box).attrs({
 })`
   margin: 10px auto 25px;
 `
-export default compose(connect(null, mapDispatchToProps), translate())(EmptyState)
+export default compose(
+  connect(
+    null,
+    mapDispatchToProps,
+  ),
+  translate(),
+)(EmptyState)
diff --git a/src/components/DashboardPage/index.js b/src/components/DashboardPage/index.js
index eea708a7..4e43c8f1 100644
--- a/src/components/DashboardPage/index.js
+++ b/src/components/DashboardPage/index.js
@@ -148,19 +148,21 @@ class DashboardPage extends PureComponent<Props, State> {
                   alignItems="center"
                   style={{ margin: '0 -16px' }}
                 >
-                  {accounts.concat(Array(3 - accounts.length % 3).fill(null)).map((account, i) => (
-                    <Box key={account ? account.id : `placeholder_${i}`} flex="33%" p={16}>
-                      {account ? (
-                        <AccountCard
-                          key={account.id}
-                          counterValue={counterValue}
-                          account={account}
-                          daysCount={daysCount}
-                          onClick={this.onAccountClick}
-                        />
-                      ) : null}
-                    </Box>
-                  ))}
+                  {accounts
+                    .concat(Array(3 - (accounts.length % 3)).fill(null))
+                    .map((account, i) => (
+                      <Box key={account ? account.id : `placeholder_${i}`} flex="33%" p={16}>
+                        {account ? (
+                          <AccountCard
+                            key={account.id}
+                            counterValue={counterValue}
+                            account={account}
+                            daysCount={daysCount}
+                            onClick={this.onAccountClick}
+                          />
+                        ) : null}
+                      </Box>
+                    ))}
                 </Box>
               </Box>
               {displayOperations && (
@@ -182,4 +184,10 @@ class DashboardPage extends PureComponent<Props, State> {
   }
 }
 
-export default compose(connect(mapStateToProps, mapDispatchToProps), translate())(DashboardPage)
+export default compose(
+  connect(
+    mapStateToProps,
+    mapDispatchToProps,
+  ),
+  translate(),
+)(DashboardPage)
diff --git a/src/components/DeltaChange.js b/src/components/DeltaChange.js
index 0178aeda..bfe0a833 100644
--- a/src/components/DeltaChange.js
+++ b/src/components/DeltaChange.js
@@ -8,7 +8,7 @@ class DeltaChange extends PureComponent<{
 }> {
   render() {
     const { from, to, ...rest } = this.props
-    const val = from ? Math.floor((to - from) / from * 100) : 0
+    const val = from ? Math.floor(((to - from) / from) * 100) : 0
     // TODO in future, we also want to diverge rendering when the % is way too high (this can easily happen)
     return <FormattedVal isPercent val={val} {...rest} />
   }
diff --git a/src/components/IsUnlocked.js b/src/components/IsUnlocked.js
index 5641c49a..7de2bdf3 100644
--- a/src/components/IsUnlocked.js
+++ b/src/components/IsUnlocked.js
@@ -169,8 +169,13 @@ class IsUnlocked extends Component<Props, State> {
 }
 
 export default compose(
-  connect(mapStateToProps, mapDispatchToProps, null, {
-    pure: false,
-  }),
+  connect(
+    mapStateToProps,
+    mapDispatchToProps,
+    null,
+    {
+      pure: false,
+    },
+  ),
   translate(),
 )(IsUnlocked)
diff --git a/src/components/MainSideBar.js b/src/components/MainSideBar.js
index d1df4bbc..06bcafe6 100644
--- a/src/components/MainSideBar.js
+++ b/src/components/MainSideBar.js
@@ -169,5 +169,12 @@ const PlusWrapper = styled(Tabbable).attrs({
   }
 `
 
-const decorate = compose(withRouter, translate(), connect(mapStateToProps, mapDispatchToProps))
+const decorate = compose(
+  withRouter,
+  translate(),
+  connect(
+    mapStateToProps,
+    mapDispatchToProps,
+  ),
+)
 export default decorate(MainSideBar)
diff --git a/src/components/ManagerPage/EnsureDevice.js b/src/components/ManagerPage/EnsureDevice.js
index 02007e83..9dcee989 100644
--- a/src/components/ManagerPage/EnsureDevice.js
+++ b/src/components/ManagerPage/EnsureDevice.js
@@ -33,4 +33,7 @@ class EnsureDevice extends PureComponent<Props, State> {
   }
 }
 
-export default compose(translate(), connect(mapStateToProps))(EnsureDevice)
+export default compose(
+  translate(),
+  connect(mapStateToProps),
+)(EnsureDevice)
diff --git a/src/components/ManagerPage/MemInfos.js b/src/components/ManagerPage/MemInfos.js
index c1eb8dc7..dafbe460 100644
--- a/src/components/ManagerPage/MemInfos.js
+++ b/src/components/ManagerPage/MemInfos.js
@@ -29,7 +29,7 @@ const Step = styled(Box).attrs({
 export default function MemInfos(props: { memoryInfos: MemoryInfos }) {
   const { memoryInfos: infos } = props
   const totalSize = infos.applicationsSize + infos.systemSize
-  const appPercent = infos.applicationsSize * 100 / totalSize
+  const appPercent = (infos.applicationsSize * 100) / totalSize
   return (
     <Container>
       <Step c="wallet" percent={appPercent}>{`${Math.round(
diff --git a/src/components/Onboarding/index.js b/src/components/Onboarding/index.js
index 0e417533..495ca599 100644
--- a/src/components/Onboarding/index.js
+++ b/src/components/Onboarding/index.js
@@ -156,4 +156,10 @@ const Container = styled(Box).attrs({
 const StepContainer = styled(Box).attrs({
   p: 40,
 })``
-export default compose(connect(mapStateToProps, mapDispatchToProps), translate())(Onboarding)
+export default compose(
+  connect(
+    mapStateToProps,
+    mapDispatchToProps,
+  ),
+  translate(),
+)(Onboarding)
diff --git a/src/components/Onboarding/steps/Analytics.js b/src/components/Onboarding/steps/Analytics.js
index c9067844..f0537441 100644
--- a/src/components/Onboarding/steps/Analytics.js
+++ b/src/components/Onboarding/steps/Analytics.js
@@ -99,7 +99,10 @@ class Analytics extends PureComponent<StepProps, State> {
   }
 }
 
-export default connect(null, mapDispatchToProps)(Analytics)
+export default connect(
+  null,
+  mapDispatchToProps,
+)(Analytics)
 
 export const AnalyticsText = styled(Box).attrs({
   ff: 'Open Sans|Regular',
diff --git a/src/components/Onboarding/steps/GenuineCheck.js b/src/components/Onboarding/steps/GenuineCheck.js
index c8570848..337b30bc 100644
--- a/src/components/Onboarding/steps/GenuineCheck.js
+++ b/src/components/Onboarding/steps/GenuineCheck.js
@@ -204,7 +204,10 @@ class GenuineCheck extends PureComponent<StepProps, State> {
   }
 }
 
-export default connect(null, mapDispatchToProps)(GenuineCheck)
+export default connect(
+  null,
+  mapDispatchToProps,
+)(GenuineCheck)
 
 // TODO extract to a separate file
 export function GenuineCheckFail({
diff --git a/src/components/Onboarding/steps/Init.js b/src/components/Onboarding/steps/Init.js
index b72699dc..fe2fd881 100644
--- a/src/components/Onboarding/steps/Init.js
+++ b/src/components/Onboarding/steps/Init.js
@@ -81,7 +81,10 @@ class Init extends PureComponent<StepProps, *> {
   }
 }
 
-export default connect(null, mapDispatchToProps)(Init)
+export default connect(
+  null,
+  mapDispatchToProps,
+)(Init)
 
 type CardType = {
   icon: any,
diff --git a/src/components/Onboarding/steps/SelectDevice.js b/src/components/Onboarding/steps/SelectDevice.js
index 81ab3cbe..9a99480a 100644
--- a/src/components/Onboarding/steps/SelectDevice.js
+++ b/src/components/Onboarding/steps/SelectDevice.js
@@ -61,7 +61,10 @@ class SelectDevice extends PureComponent<StepProps, {}> {
   }
 }
 
-export default connect(null, mapDispatchToProps)(SelectDevice)
+export default connect(
+  null,
+  mapDispatchToProps,
+)(SelectDevice)
 
 const DeviceContainer = styled(Box).attrs({
   alignItems: 'center',
diff --git a/src/components/RequestAmount/index.js b/src/components/RequestAmount/index.js
index 2e5de5d4..605676c6 100644
--- a/src/components/RequestAmount/index.js
+++ b/src/components/RequestAmount/index.js
@@ -179,4 +179,7 @@ export class RequestAmount extends PureComponent<Props> {
   }
 }
 
-export default compose(connect(mapStateToProps), translate())(RequestAmount)
+export default compose(
+  connect(mapStateToProps),
+  translate(),
+)(RequestAmount)
diff --git a/src/components/SettingsPage/PasswordModal.js b/src/components/SettingsPage/PasswordModal.js
index 4ee151a0..9d58b47f 100644
--- a/src/components/SettingsPage/PasswordModal.js
+++ b/src/components/SettingsPage/PasswordModal.js
@@ -151,4 +151,7 @@ class PasswordModal extends PureComponent<Props, State> {
   }
 }
 
-export default connect(null, mapDispatchToProps)(PasswordModal)
+export default connect(
+  null,
+  mapDispatchToProps,
+)(PasswordModal)
diff --git a/src/components/SettingsPage/index.js b/src/components/SettingsPage/index.js
index 05e580e8..43c5476f 100644
--- a/src/components/SettingsPage/index.js
+++ b/src/components/SettingsPage/index.js
@@ -130,4 +130,10 @@ class SettingsPage extends PureComponent<Props, State> {
   }
 }
 
-export default compose(connect(mapStateToProps, mapDispatchToProps), translate())(SettingsPage)
+export default compose(
+  connect(
+    mapStateToProps,
+    mapDispatchToProps,
+  ),
+  translate(),
+)(SettingsPage)
diff --git a/src/components/SettingsPage/sections/Profile.js b/src/components/SettingsPage/sections/Profile.js
index 008e2bc8..c2b076f6 100644
--- a/src/components/SettingsPage/sections/Profile.js
+++ b/src/components/SettingsPage/sections/Profile.js
@@ -212,4 +212,7 @@ class TabProfile extends PureComponent<Props, State> {
   }
 }
 
-export default connect(null, mapDispatchToProps)(TabProfile)
+export default connect(
+  null,
+  mapDispatchToProps,
+)(TabProfile)
diff --git a/src/components/UpdateNotifier.js b/src/components/UpdateNotifier.js
index 92dfd3dc..611240ae 100644
--- a/src/components/UpdateNotifier.js
+++ b/src/components/UpdateNotifier.js
@@ -90,4 +90,10 @@ class UpdateNotifier extends PureComponent<Props> {
   }
 }
 
-export default compose(connect(mapStateToProps, null), translate())(UpdateNotifier)
+export default compose(
+  connect(
+    mapStateToProps,
+    null,
+  ),
+  translate(),
+)(UpdateNotifier)
diff --git a/src/components/base/Modal/index.js b/src/components/base/Modal/index.js
index 26511ea1..0d49dd6c 100644
--- a/src/components/base/Modal/index.js
+++ b/src/components/base/Modal/index.js
@@ -204,4 +204,7 @@ export const ModalContent = styled(Box).attrs({
   pb: 5,
 })``
 
-export default connect(mapStateToProps, mapDispatchToProps)(Modal)
+export default connect(
+  mapStateToProps,
+  mapDispatchToProps,
+)(Modal)
diff --git a/src/components/layout/Default.js b/src/components/layout/Default.js
index cece3bb3..79dba2f4 100644
--- a/src/components/layout/Default.js
+++ b/src/components/layout/Default.js
@@ -101,4 +101,7 @@ class Default extends Component<Props> {
   }
 }
 
-export default compose(withRouter, translate())(Default)
+export default compose(
+  withRouter,
+  translate(),
+)(Default)
diff --git a/src/components/modals/AccountSettingRenderBody.js b/src/components/modals/AccountSettingRenderBody.js
index 7fda1023..1ce382ad 100644
--- a/src/components/modals/AccountSettingRenderBody.js
+++ b/src/components/modals/AccountSettingRenderBody.js
@@ -198,7 +198,13 @@ class HelperComp extends PureComponent<Props, State> {
   }
 }
 
-export default compose(connect(null, mapDispatchToProps), translate())(HelperComp)
+export default compose(
+  connect(
+    null,
+    mapDispatchToProps,
+  ),
+  translate(),
+)(HelperComp)
 
 export function InputLeft({ currency }: { currency: Currency }) {
   return (
diff --git a/src/components/modals/ImportAccounts/index.js b/src/components/modals/ImportAccounts/index.js
index 0774bc6f..7f6b464d 100644
--- a/src/components/modals/ImportAccounts/index.js
+++ b/src/components/modals/ImportAccounts/index.js
@@ -218,7 +218,13 @@ class ImportAccounts extends PureComponent<Props, State> {
   }
 }
 
-export default compose(connect(mapStateToProps, mapDispatchToProps), translate())(ImportAccounts)
+export default compose(
+  connect(
+    mapStateToProps,
+    mapDispatchToProps,
+  ),
+  translate(),
+)(ImportAccounts)
 
 function idleCallback() {
   return new Promise(resolve => window.requestIdleCallback(resolve))
diff --git a/src/helpers/SettingsDefaults.js b/src/helpers/SettingsDefaults.js
index 998a7328..469c08c2 100644
--- a/src/helpers/SettingsDefaults.js
+++ b/src/helpers/SettingsDefaults.js
@@ -15,7 +15,7 @@ export const currencySettingsDefaults = ({
 }: CryptoCurrency): ConfirmationDefaults => {
   let confirmationsNb
   if (blockAvgTime) {
-    const def = Math.ceil(30 * 60 / blockAvgTime) // 30 min approx validation
+    const def = Math.ceil((30 * 60) / blockAvgTime) // 30 min approx validation
     confirmationsNb = { min: 1, def, max: 2 * def }
   }
   return {