-20.43% is the change from 798 to 635
Calculation steps:
[( 635 - 798 ) ÷ 798] x 100 = -20.43%
Formula
Percentage change = [(635 - 798) / 798] x 100
Subtract the new number by the original number
635 - 798 = -163
-163 ÷ 798 = -0.20426065162907267
-0.20426065162907267 x 100 = -20.43%