-30.61% is the change from 722 to 501
Calculation steps:
[( 501 - 722 ) ÷ 722] x 100 = -30.61%
Formula
Percentage change = [(501 - 722) / 722] x 100
Subtract the new number by the original number
501 - 722 = -221
-221 ÷ 722 = -0.3060941828254848
-0.3060941828254848 x 100 = -30.61%