-18.64% is the change from 794 to 646
Calculation steps:
[( 646 - 794 ) ÷ 794] x 100 = -18.64%
Formula
Percentage change = [(646 - 794) / 794] x 100
Subtract the new number by the original number
646 - 794 = -148
-148 ÷ 794 = -0.18639798488664988
-0.18639798488664988 x 100 = -18.64%