-23.84% is the change from 818 to 623
Calculation steps:
[( 623 - 818 ) ÷ 818] x 100 = -23.84%
Formula
Percentage change = [(623 - 818) / 818] x 100
Subtract the new number by the original number
623 - 818 = -195
-195 ÷ 818 = -0.23838630806845965
-0.23838630806845965 x 100 = -23.84%