-20.06% is the change from 663 to 530
Calculation steps:
[( 530 - 663 ) ÷ 663] x 100 = -20.06%
Formula
Percentage change = [(530 - 663) / 663] x 100
Subtract the new number by the original number
530 - 663 = -133
-133 ÷ 663 = -0.20060331825037708
-0.20060331825037708 x 100 = -20.06%