-2.36% is the change from 847 to 827
Calculation steps:
[( 827 - 847 ) ÷ 847] x 100 = -2.36%
Formula
Percentage change = [(827 - 847) / 847] x 100
Subtract the new number by the original number
827 - 847 = -20
-20 ÷ 847 = -0.023612750885478158
-0.023612750885478158 x 100 = -2.36%