-22.97% is the change from 688 to 530
Calculation steps:
[( 530 - 688 ) ÷ 688] x 100 = -22.97%
Formula
Percentage change = [(530 - 688) / 688] x 100
Subtract the new number by the original number
530 - 688 = -158
-158 ÷ 688 = -0.22965116279069767
-0.22965116279069767 x 100 = -22.97%