-11.08% is the change from 821 to 730
Calculation steps:
[( 730 - 821 ) ÷ 821] x 100 = -11.08%
Formula
Percentage change = [(730 - 821) / 821] x 100
Subtract the new number by the original number
730 - 821 = -91
-91 ÷ 821 = -0.11084043848964677
-0.11084043848964677 x 100 = -11.08%