SOLUTION: sunglasses that usually cost $160.95 are on sale for $128.44. What percent off are they

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Question 908760: sunglasses that usually cost $160.95 are on sale for $128.44. What percent off are they
Answer by JulietG(1812) About Me  (Show Source):
You can put this solution on YOUR website!
160.95 - 128.44 = 32.51 discount
32.51+%2F+160.95 = 20.1988% off
That's a weird number. Are you sure you have the values typed in correctly?
If it's rounded to 20% off, then glasses that normally cost $160.95 have a reduction of 32.19 for a final cost of $128.76