-23.27% is the change from 808 to 620
Calculation steps:
[( 620 - 808 ) ÷ 808] x 100 = -23.27%
Formula
Percentage change = [(620 - 808) / 808] x 100
Subtract the new number by the original number
620 - 808 = -188
-188 ÷ 808 = -0.23267326732673269
-0.23267326732673269 x 100 = -23.27%