Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> e8fa78becc6288a694248675992a361252cb40483ab466949db8fda69aa92de8:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^