-21.83% is the change from 797 to 623
Calculation steps:
[( 623 - 797 ) ÷ 797] x 100 = -21.83%
Formula
Percentage change = [(623 - 797) / 797] x 100
Subtract the new number by the original number
623 - 797 = -174
-174 ÷ 797 = -0.21831869510664995
-0.21831869510664995 x 100 = -21.83%