-10.23% is the change from 821 to 737
Calculation steps:
[( 737 - 821 ) ÷ 821] x 100 = -10.23%
Formula
Percentage change = [(737 - 821) / 821] x 100
Subtract the new number by the original number
737 - 821 = -84
-84 ÷ 821 = -0.1023142509135201
-0.1023142509135201 x 100 = -10.23%