Cash Register challenge

I did everything right, but I came across problem with freecodecamp floating point compiler when I reduce 60 from 94.74 it becomes 34.7399999999995
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What could I do for solving that?

You can use toFixed() method to reduce a number to a fixed point notation. Note the result will be as a string (you can convert it back to number using the parseFloat).

You can also keep track of pennies instead of dollars in your calculations.