-18.73% is the change from 662 to 538
Calculation steps:
[( 538 - 662 ) ÷ 662] x 100 = -18.73%
Formula
Percentage change = [(538 - 662) / 662] x 100
Subtract the new number by the original number
538 - 662 = -124
-124 ÷ 662 = -0.18731117824773413
-0.18731117824773413 x 100 = -18.73%