-97.64% is the change from 848 to 20
Calculation steps:
[( 20 - 848 ) ÷ 848] x 100 = -97.64%
Formula
Percentage change = [(20 - 848) / 848] x 100
Subtract the new number by the original number
20 - 848 = -828
-828 ÷ 848 = -0.9764150943396226
-0.9764150943396226 x 100 = -97.64%