-66.32% is the change from 855 to 288
Calculation steps:
[( 288 - 855 ) ÷ 855] x 100 = -66.32%
Formula
Percentage change = [(288 - 855) / 855] x 100
Subtract the new number by the original number
288 - 855 = -567
-567 ÷ 855 = -0.6631578947368421
-0.6631578947368421 x 100 = -66.32%
Example