-11% is the change from 800 to 712
Calculation steps:
[( 712 - 800 ) ÷ 800] x 100 = -11%
Formula
Percentage change = [(712 - 800) / 800] x 100
Subtract the new number by the original number
712 - 800 = -88
-88 ÷ 800 = -0.11
-0.11 x 100 = -11%
Example