-91.99% is the change from 624 to 50
Calculation steps:
[( 50 - 624 ) ÷ 624] x 100 = -91.99%
Formula
Percentage change = [(50 - 624) / 624] x 100
Subtract the new number by the original number
50 - 624 = -574
-574 ÷ 624 = -0.9198717948717948
-0.9198717948717948 x 100 = -91.99%