-0.49% is the change from 822 to 818
Calculation steps:
[( 818 - 822 ) ÷ 822] x 100 = -0.49%
Formula
Percentage change = [(818 - 822) / 822] x 100
Subtract the new number by the original number
818 - 822 = -4
-4 ÷ 822 = -0.004866180048661801
-0.004866180048661801 x 100 = -0.49%