-59.13% is the change from 624 to 255
Calculation steps:
[( 255 - 624 ) ÷ 624] x 100 = -59.13%
Formula
Percentage change = [(255 - 624) / 624] x 100
Subtract the new number by the original number
255 - 624 = -369
-369 ÷ 624 = -0.5913461538461539
-0.5913461538461539 x 100 = -59.13%