-20.21% is the change from 663 to 529
Calculation steps:
[( 529 - 663 ) ÷ 663] x 100 = -20.21%
Formula
Percentage change = [(529 - 663) / 663] x 100
Subtract the new number by the original number
529 - 663 = -134
-134 ÷ 663 = -0.20211161387631976
-0.20211161387631976 x 100 = -20.21%