-66.79% is the change from 801 to 266
Calculation steps:
[( 266 - 801 ) ÷ 801] x 100 = -66.79%
Formula
Percentage change = [(266 - 801) / 801] x 100
Subtract the new number by the original number
266 - 801 = -535
-535 ÷ 801 = -0.6679151061173533
-0.6679151061173533 x 100 = -66.79%
Example