-73.4% is the change from 624 to 166
Calculation steps:
[( 166 - 624 ) ÷ 624] x 100 = -73.4%
Formula
Percentage change = [(166 - 624) / 624] x 100
Subtract the new number by the original number
166 - 624 = -458
-458 ÷ 624 = -0.7339743589743589
-0.7339743589743589 x 100 = -73.4%