amm.ts: fix additional bug in calculateSpreadBN (negative nums)

drift-labs · Dec 5, 2022 · edf27af · edf27af
1 parent 22830cc
commit edf27af
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -11,5 +11,6 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Fixes
 - ts-sdk: fix bugs in calculateSpreadBN
+- ts-sdk: fix additional bug in calculateSpreadBN (negative nums)
 
 ### Breaking
diff --git a/sdk/src/math/amm.ts b/sdk/src/math/amm.ts
@@ -606,7 +606,7 @@ export function calculateSpreadBN(
 			maxTargetSpread / 10,
 			Math.floor(
 				(baseSpread * netRevenueSinceLastFunding.abs().toNumber()) /
-					DEFAULT_REVENUE_SINCE_LAST_FUNDING_SPREAD_RETREAT.toNumber()
+					DEFAULT_REVENUE_SINCE_LAST_FUNDING_SPREAD_RETREAT.abs().toNumber()
 			)
 		);
 		const halfRevenueRetreatAmount = Math.floor(revenueRetreatAmount / 2);