-22.63% is the change from 822 to 636
Calculation steps:
[( 636 - 822 ) ÷ 822] x 100 = -22.63%
Formula
Percentage change = [(636 - 822) / 822] x 100
Subtract the new number by the original number
636 - 822 = -186
-186 ÷ 822 = -0.22627737226277372
-0.22627737226277372 x 100 = -22.63%