-19.61% is the change from 775 to 623
Calculation steps:
[( 623 - 775 ) ÷ 775] x 100 = -19.61%
Formula
Percentage change = [(623 - 775) / 775] x 100
Subtract the new number by the original number
623 - 775 = -152
-152 ÷ 775 = -0.19612903225806452
-0.19612903225806452 x 100 = -19.61%