-75.68% is the change from 621 to 151
Calculation steps:
[( 151 - 621 ) ÷ 621] x 100 = -75.68%
Formula
Percentage change = [(151 - 621) / 621] x 100
Subtract the new number by the original number
151 - 621 = -470
-470 ÷ 621 = -0.7568438003220612
-0.7568438003220612 x 100 = -75.68%