-31.57% is the change from 624 to 427
Calculation steps:
[( 427 - 624 ) ÷ 624] x 100 = -31.57%
Formula
Percentage change = [(427 - 624) / 624] x 100
Subtract the new number by the original number
427 - 624 = -197
-197 ÷ 624 = -0.3157051282051282
-0.3157051282051282 x 100 = -31.57%