-89.1% is the change from 624 to 68
Calculation steps:
[( 68 - 624 ) ÷ 624] x 100 = -89.1%
Formula
Percentage change = [(68 - 624) / 624] x 100
Subtract the new number by the original number
68 - 624 = -556
-556 ÷ 624 = -0.8910256410256411
-0.8910256410256411 x 100 = -89.1%