-68.07% is the change from 833 to 266
Calculation steps:
[( 266 - 833 ) ÷ 833] x 100 = -68.07%
Formula
Percentage change = [(266 - 833) / 833] x 100
Subtract the new number by the original number
266 - 833 = -567
-567 ÷ 833 = -0.680672268907563
-0.680672268907563 x 100 = -68.07%