-17.6% is the change from 801 to 660
Calculation steps:
[( 660 - 801 ) ÷ 801] x 100 = -17.6%
Formula
Percentage change = [(660 - 801) / 801] x 100
Subtract the new number by the original number
660 - 801 = -141
-141 ÷ 801 = -0.1760299625468165
-0.1760299625468165 x 100 = -17.6%