-0.6% is the change from 827 to 822
Calculation steps:
[( 822 - 827 ) ÷ 827] x 100 = -0.6%
Formula
Percentage change = [(822 - 827) / 827] x 100
Subtract the new number by the original number
822 - 827 = -5
-5 ÷ 827 = -0.006045949214026602
-0.006045949214026602 x 100 = -0.6%