-29.61% is the change from 868 to 611
Calculation steps:
[( 611 - 868 ) ÷ 868] x 100 = -29.61%
Formula
Percentage change = [(611 - 868) / 868] x 100
Subtract the new number by the original number
611 - 868 = -257
-257 ÷ 868 = -0.2960829493087558
-0.2960829493087558 x 100 = -29.61%