APT-1513: APR calculation fix (#15)

* apr calculation fix

* Update src/misc/stakingPoolsConfig.ts

Co-authored-by: Mark T. B. Carroll <[email protected]>

---------

Co-authored-by: Łukasz Kosiak <[email protected]>
Co-authored-by: Mark T. B. Carroll <[email protected]>

src/components/stakingPoolCard.tsx

@@ -86,7 +86,7 @@ const StakingPoolCard: React.FC<StakingPoolCardProps> = ({
                           : 'text-gray4'
                       }`}
                     >
-                      VP {stakingPoolData.data.votingPower * 100}%
+                      VP {(stakingPoolData.data.votingPower * 100).toPrecision(3)}%
                     </div>
                   ) : (
                     <>

src/misc/stakingPoolsConfig.ts

@@ -91,8 +91,10 @@ async function fetchDelegatorDataFromNetwork(definition: StakingPoolDefinition,
 
     const zilToTokenRate = 1 / parseFloat(formatUnits(zilToTokenRateWei, 18));
 
-    const commission = Number((commissionNumerator * 100n) / commissionDenominator) / 100;
-    const votingPower = Number(((delegatorStake * 100n) / depositTotalStake)) / 100;
+    const bigintDivisionPrecision = 1000000n;
+
+    const commission = Number((commissionNumerator * bigintDivisionPrecision) / commissionDenominator) / Number(bigintDivisionPrecision);
+    const votingPower = Number(((delegatorStake * bigintDivisionPrecision) / depositTotalStake)) / Number(bigintDivisionPrecision);
     const rewardsPerYearInZil = 51000 * 24 * 365;
 
     const delegatorYearReward = votingPower * rewardsPerYearInZil;