Thunder Loan

The getCalculatedFee function calculates the fee by multiplying the borrowed amount by the token's price in WETH, resulting in a fee denominated in WETH. However, the flashloan function adds this WETH-denominated fee directly to the startingBalance of the borrowed token. This unit mismatch leads to drastically incorrect fee amounts, either overcharging or undercharging users depending on the token's price relative to WETH.