-66.99% is the change from 833 to 275
Calculation steps:
[( 275 - 833 ) ÷ 833] x 100 = -66.99%
Formula
Percentage change = [(275 - 833) / 833] x 100
Subtract the new number by the original number
275 - 833 = -558
-558 ÷ 833 = -0.6698679471788715
-0.6698679471788715 x 100 = -66.99%