-20.99% is the change from 624 to 493
Calculation steps:
[( 493 - 624 ) ÷ 624] x 100 = -20.99%
Formula
Percentage change = [(493 - 624) / 624] x 100
Subtract the new number by the original number
493 - 624 = -131
-131 ÷ 624 = -0.20993589743589744
-0.20993589743589744 x 100 = -20.99%