-20.91% is the change from 794 to 628
Calculation steps:
[( 628 - 794 ) ÷ 794] x 100 = -20.91%
Formula
Percentage change = [(628 - 794) / 794] x 100
Subtract the new number by the original number
628 - 794 = -166
-166 ÷ 794 = -0.20906801007556675
-0.20906801007556675 x 100 = -20.91%