-8.75% is the change from 800 to 730
Calculation steps:
[( 730 - 800 ) ÷ 800] x 100 = -8.75%
Formula
Percentage change = [(730 - 800) / 800] x 100
Subtract the new number by the original number
730 - 800 = -70
-70 ÷ 800 = -0.0875
-0.0875 x 100 = -8.75%