Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> eefa0bf0c22fa6752b67f5e9cf9d4dfffc06bc6a21520f0ce2266b05ca828c6b:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^