-91.18% is the change from 964 to 85
Calculation steps:
[( 85 - 964 ) ÷ 964] x 100 = -91.18%
Formula
Percentage change = [(85 - 964) / 964] x 100
Subtract the new number by the original number
85 - 964 = -879
-879 ÷ 964 = -0.9118257261410788
-0.9118257261410788 x 100 = -91.18%