Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 47008654f9543061833f13dfb0b2d913d5611d0b00ad2860ad3c067715983615:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^