diff --git a/src/app/components/Header.jsx b/src/app/components/Header.jsx
index dd309546..db2294d5 100644
--- a/src/app/components/Header.jsx
+++ b/src/app/components/Header.jsx
@@ -27,7 +27,7 @@ function normalizePercent(val) {
   if (val === '' || isNaN(val)) {
     return 0;
   }
-  val = Math.round(val * 100) / 100;
+  val = Math.round(val * 1000) / 1000;
   return val >= 100 ? 100 : val;
 }
 
@@ -512,4 +512,4 @@ export default class Header extends TranslatedComponent {
     );
   }
 
-}
\ No newline at end of file
+}
diff --git a/src/app/shipyard/Serializer.js b/src/app/shipyard/Serializer.js
index 2608b4ea..1fb3e477 100644
--- a/src/app/shipyard/Serializer.js
+++ b/src/app/shipyard/Serializer.js
@@ -115,6 +115,11 @@ export function toDetailedBuild(buildName, ship) {
   return data;
 };
 
+/**
+ * Instantiates a ship from a ship-loadout object, using the code
+ * @param  {Object} detailedBuild ship-loadout object
+ * @return {Ship} Ship instance
+ */
 export function fromDetailedBuild(detailedBuild) {
   let shipId = Object.keys(Ships).find((shipId) => Ships[shipId].properties.name.toLowerCase() == detailedBuild.ship.toLowerCase());
 
diff --git a/src/app/shipyard/Ship.js b/src/app/shipyard/Ship.js
index 7aed5db8..25e35110 100755
--- a/src/app/shipyard/Ship.js
+++ b/src/app/shipyard/Ship.js
@@ -4,7 +4,7 @@ import Module from './Module';
 import LZString from 'lz-string';
 import isEqual from 'lodash/lang';
 import { Modifications } from 'coriolis-data/dist';
-var zlib = require('zlib');
+const zlib = require('zlib');
 
 const UNIQUE_MODULES = ['psg', 'sg', 'bsg', 'rf', 'fs', 'fh'];
 
@@ -234,7 +234,7 @@ export default class Ship {
     }
 
     // TODO obtain shield boost
-    //return Calc.shieldStrength(this.hullMass, this.baseShieldStrength, sg, this.shieldMultiplier + (multiplierDelta || 0));
+    // return Calc.shieldStrength(this.hullMass, this.baseShieldStrength, sg, this.shieldMultiplier + (multiplierDelta || 0));
     return Calc.shieldStrength(this.hullMass, this.baseShieldStrength, sg, 0 + (multiplierDelta || 0));
   }