-0.88% is the change from 800 to 793
Calculation steps:
[( 793 - 800 ) ÷ 800] x 100 = -0.88%
Formula
Percentage change = [(793 - 800) / 800] x 100
Subtract the new number by the original number
793 - 800 = -7
-7 ÷ 800 = -0.00875
-0.00875 x 100 = -0.88%