-17.79% is the change from 798 to 656
Calculation steps:
[( 656 - 798 ) ÷ 798] x 100 = -17.79%
Formula
Percentage change = [(656 - 798) / 798] x 100
Subtract the new number by the original number
656 - 798 = -142
-142 ÷ 798 = -0.17794486215538846
-0.17794486215538846 x 100 = -17.79%