-90.81% is the change from 620 to 57
Calculation steps:
[( 57 - 620 ) ÷ 620] x 100 = -90.81%
Formula
Percentage change = [(57 - 620) / 620] x 100
Subtract the new number by the original number
57 - 620 = -563
-563 ÷ 620 = -0.9080645161290323
-0.9080645161290323 x 100 = -90.81%