-10.57% is the change from 814 to 728
Calculation steps:
[( 728 - 814 ) ÷ 814] x 100 = -10.57%
Formula
Percentage change = [(728 - 814) / 814] x 100
Subtract the new number by the original number
728 - 814 = -86
-86 ÷ 814 = -0.10565110565110565
-0.10565110565110565 x 100 = -10.57%