-95.19% is the change from 624 to 30
Calculation steps:
[( 30 - 624 ) ÷ 624] x 100 = -95.19%
Formula
Percentage change = [(30 - 624) / 624] x 100
Subtract the new number by the original number
30 - 624 = -594
-594 ÷ 624 = -0.9519230769230769
-0.9519230769230769 x 100 = -95.19%