Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> dbe1c70bec175723b7ef668968e976e11284e5c529100510678f527db8494272:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^