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-rw-r--r--packages/0x.js/src/order_watcher/remaining_fillable_calculator.ts8
1 files changed, 6 insertions, 2 deletions
diff --git a/packages/0x.js/src/order_watcher/remaining_fillable_calculator.ts b/packages/0x.js/src/order_watcher/remaining_fillable_calculator.ts
index b98ef3240..30f79e786 100644
--- a/packages/0x.js/src/order_watcher/remaining_fillable_calculator.ts
+++ b/packages/0x.js/src/order_watcher/remaining_fillable_calculator.ts
@@ -74,8 +74,12 @@ export class RemainingFillableCalculator {
}
// When Ratio is not fully divisible there can be remainders which cannot be represented, so they are floored.
// This can result in a RoundingError being thrown by the Exchange Contract.
- const partiallyFillableMakerTokenAmount = fillableTimesInMakerTokenUnits.times(orderToFeeRatio).floor();
- const partiallyFillableFeeTokenAmount = fillableTimesInFeeTokenBaseUnits.times(orderToFeeRatio).floor();
+ const partiallyFillableMakerTokenAmount = fillableTimesInMakerTokenUnits
+ .times(this.signedOrder.makerTokenAmount)
+ .dividedToIntegerBy(this.signedOrder.makerFee);
+ const partiallyFillableFeeTokenAmount = fillableTimesInFeeTokenBaseUnits
+ .times(this.signedOrder.makerTokenAmount)
+ .dividedToIntegerBy(this.signedOrder.makerFee);
const partiallyFillableAmount = BigNumber.min(partiallyFillableMakerTokenAmount,
partiallyFillableFeeTokenAmount);
return partiallyFillableAmount;