-69.39% is the change from 722 to 221
Calculation steps:
[( 221 - 722 ) ÷ 722] x 100 = -69.39%
Formula
Percentage change = [(221 - 722) / 722] x 100
Subtract the new number by the original number
221 - 722 = -501
-501 ÷ 722 = -0.6939058171745153
-0.6939058171745153 x 100 = -69.39%