-21.15% is the change from 624 to 492
Calculation steps:
[( 492 - 624 ) ÷ 624] x 100 = -21.15%
Formula
Percentage change = [(492 - 624) / 624] x 100
Subtract the new number by the original number
492 - 624 = -132
-132 ÷ 624 = -0.21153846153846154
-0.21153846153846154 x 100 = -21.15%