-19.07% is the change from 624 to 505
Calculation steps:
[( 505 - 624 ) ÷ 624] x 100 = -19.07%
Formula
Percentage change = [(505 - 624) / 624] x 100
Subtract the new number by the original number
505 - 624 = -119
-119 ÷ 624 = -0.1907051282051282
-0.1907051282051282 x 100 = -19.07%