-21.99% is the change from 814 to 635
Calculation steps:
[( 635 - 814 ) ÷ 814] x 100 = -21.99%
Formula
Percentage change = [(635 - 814) / 814] x 100
Subtract the new number by the original number
635 - 814 = -179
-179 ÷ 814 = -0.2199017199017199
-0.2199017199017199 x 100 = -21.99%