-23.4% is the change from 624 to 478
Calculation steps:
[( 478 - 624 ) ÷ 624] x 100 = -23.4%
Formula
Percentage change = [(478 - 624) / 624] x 100
Subtract the new number by the original number
478 - 624 = -146
-146 ÷ 624 = -0.23397435897435898
-0.23397435897435898 x 100 = -23.4%
Example