-34.13% is the change from 800 to 527
Calculation steps:
[( 527 - 800 ) ÷ 800] x 100 = -34.13%
Formula
Percentage change = [(527 - 800) / 800] x 100
Subtract the new number by the original number
527 - 800 = -273
-273 ÷ 800 = -0.34125
-0.34125 x 100 = -34.13%