-30.47% is the change from 722 to 502
Calculation steps:
[( 502 - 722 ) ÷ 722] x 100 = -30.47%
Formula
Percentage change = [(502 - 722) / 722] x 100
Subtract the new number by the original number
502 - 722 = -220
-220 ÷ 722 = -0.3047091412742382
-0.3047091412742382 x 100 = -30.47%