-23.21% is the change from 810 to 622
Calculation steps:
[( 622 - 810 ) ÷ 810] x 100 = -23.21%
Formula
Percentage change = [(622 - 810) / 810] x 100
Subtract the new number by the original number
622 - 810 = -188
-188 ÷ 810 = -0.23209876543209876
-0.23209876543209876 x 100 = -23.21%