-55.85% is the change from 727 to 321
Calculation steps:
[( 321 - 727 ) ÷ 727] x 100 = -55.85%
Formula
Percentage change = [(321 - 727) / 727] x 100
Subtract the new number by the original number
321 - 727 = -406
-406 ÷ 727 = -0.5584594222833562
-0.5584594222833562 x 100 = -55.85%