-18.77% is the change from 794 to 645
Calculation steps:
[( 645 - 794 ) ÷ 794] x 100 = -18.77%
Formula
Percentage change = [(645 - 794) / 794] x 100
Subtract the new number by the original number
645 - 794 = -149
-149 ÷ 794 = -0.18765743073047858
-0.18765743073047858 x 100 = -18.77%