-70.89% is the change from 876 to 255
Calculation steps:
[( 255 - 876 ) ÷ 876] x 100 = -70.89%
Formula
Percentage change = [(255 - 876) / 876] x 100
Subtract the new number by the original number
255 - 876 = -621
-621 ÷ 876 = -0.708904109589041
-0.708904109589041 x 100 = -70.89%