-21.54% is the change from 794 to 623
Calculation steps:
[( 623 - 794 ) ÷ 794] x 100 = -21.54%
Formula
Percentage change = [(623 - 794) / 794] x 100
Subtract the new number by the original number
623 - 794 = -171
-171 ÷ 794 = -0.21536523929471033
-0.21536523929471033 x 100 = -21.54%