-1.44% is the change from 833 to 821
Calculation steps:
[( 821 - 833 ) ÷ 833] x 100 = -1.44%
Formula
Percentage change = [(821 - 833) / 833] x 100
Subtract the new number by the original number
821 - 833 = -12
-12 ÷ 833 = -0.014405762304921969
-0.014405762304921969 x 100 = -1.44%