-98.4% is the change from 624 to 10
Calculation steps:
[( 10 - 624 ) ÷ 624] x 100 = -98.4%
Formula
Percentage change = [(10 - 624) / 624] x 100
Subtract the new number by the original number
10 - 624 = -614
-614 ÷ 624 = -0.9839743589743589
-0.9839743589743589 x 100 = -98.4%