-7.41% is the change from 864 to 800
Calculation steps:
[( 800 - 864 ) ÷ 864] x 100 = -7.41%
Formula
Percentage change = [(800 - 864) / 864] x 100
Subtract the new number by the original number
800 - 864 = -64
-64 ÷ 864 = -0.07407407407407407
-0.07407407407407407 x 100 = -7.41%