-37.34% is the change from 624 to 391
Calculation steps:
[( 391 - 624 ) ÷ 624] x 100 = -37.34%
Formula
Percentage change = [(391 - 624) / 624] x 100
Subtract the new number by the original number
391 - 624 = -233
-233 ÷ 624 = -0.3733974358974359
-0.3733974358974359 x 100 = -37.34%