-1.46% is the change from 820 to 808
Calculation steps:
[( 808 - 820 ) ÷ 820] x 100 = -1.46%
Formula
Percentage change = [(808 - 820) / 820] x 100
Subtract the new number by the original number
808 - 820 = -12
-12 ÷ 820 = -0.014634146341463415
-0.014634146341463415 x 100 = -1.46%