-55.54% is the change from 722 to 321
Calculation steps:
[( 321 - 722 ) ÷ 722] x 100 = -55.54%
Formula
Percentage change = [(321 - 722) / 722] x 100
Subtract the new number by the original number
321 - 722 = -401
-401 ÷ 722 = -0.5554016620498615
-0.5554016620498615 x 100 = -55.54%