-19.45% is the change from 622 to 501
Calculation steps:
[( 501 - 622 ) ÷ 622] x 100 = -19.45%
Formula
Percentage change = [(501 - 622) / 622] x 100
Subtract the new number by the original number
501 - 622 = -121
-121 ÷ 622 = -0.1945337620578778
-0.1945337620578778 x 100 = -19.45%