-3.26% is the change from 827 to 800
Calculation steps:
[( 800 - 827 ) ÷ 827] x 100 = -3.26%
Formula
Percentage change = [(800 - 827) / 827] x 100
Subtract the new number by the original number
800 - 827 = -27
-27 ÷ 827 = -0.032648125755743655
-0.032648125755743655 x 100 = -3.26%