-66.5% is the change from 800 to 268
Calculation steps:
[( 268 - 800 ) ÷ 800] x 100 = -66.5%
Formula
Percentage change = [(268 - 800) / 800] x 100
Subtract the new number by the original number
268 - 800 = -532
-532 ÷ 800 = -0.665
-0.665 x 100 = -66.5%