# Thread: Help with making a formula

1. ## Help with making a formula

 Hours 4.75 x $81.00 base rate =$384.75 11% of $384.75$42.32 5% of $384.75$ 19.24 -10% of $384.75 -$38.48 15% of $384.75$57.71 + $4.00 Total =$469.54

So my question is that i need help coming up with a formula so i can plug in the total with a number and it come out with the base rate amount