-71.5% is the change from 200 to 57
Calculation steps:
[( 57 - 200 ) ÷ 200] x 100 = -71.5%
Formula
Percentage change = [(57 - 200) / 200] x 100
Subtract the new number by the original number
57 - 200 = -143
-143 ÷ 200 = -0.715
-0.715 x 100 = -71.5%
Example