Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 5988db1cc012cfbc3f5503bb23ddc98a2dafaced68721b64db3c8f721d6ad8ea:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^