-17.99% is the change from 656 to 538
Calculation steps:
[( 538 - 656 ) ÷ 656] x 100 = -17.99%
Formula
Percentage change = [(538 - 656) / 656] x 100
Subtract the new number by the original number
538 - 656 = -118
-118 ÷ 656 = -0.1798780487804878
-0.1798780487804878 x 100 = -17.99%