-13.64% is the change from 821 to 709
Calculation steps:
[( 709 - 821 ) ÷ 821] x 100 = -13.64%
Formula
Percentage change = [(709 - 821) / 821] x 100
Subtract the new number by the original number
709 - 821 = -112
-112 ÷ 821 = -0.1364190012180268
-0.1364190012180268 x 100 = -13.64%