-21.47% is the change from 624 to 490
Calculation steps:
[( 490 - 624 ) ÷ 624] x 100 = -21.47%
Formula
Percentage change = [(490 - 624) / 624] x 100
Subtract the new number by the original number
490 - 624 = -134
-134 ÷ 624 = -0.21474358974358973
-0.21474358974358973 x 100 = -21.47%