-91.14% is the change from 959 to 85
Calculation steps:
[( 85 - 959 ) ÷ 959] x 100 = -91.14%
Formula
Percentage change = [(85 - 959) / 959] x 100
Subtract the new number by the original number
85 - 959 = -874
-874 ÷ 959 = -0.9113660062565172
-0.9113660062565172 x 100 = -91.14%