-87.34% is the change from 624 to 79
Calculation steps:
[( 79 - 624 ) ÷ 624] x 100 = -87.34%
Formula
Percentage change = [(79 - 624) / 624] x 100
Subtract the new number by the original number
79 - 624 = -545
-545 ÷ 624 = -0.8733974358974359
-0.8733974358974359 x 100 = -87.34%