-95.62% is the change from 457 to 20
Calculation steps:
[( 20 - 457 ) ÷ 457] x 100 = -95.62%
Formula
Percentage change = [(20 - 457) / 457] x 100
Subtract the new number by the original number
20 - 457 = -437
-437 ÷ 457 = -0.9562363238512035
-0.9562363238512035 x 100 = -95.62%