-15.52% is the change from 960 to 811
Calculation steps:
[( 811 - 960 ) ÷ 960] x 100 = -15.52%
Formula
Percentage change = [(811 - 960) / 960] x 100
Subtract the new number by the original number
811 - 960 = -149
-149 ÷ 960 = -0.15520833333333334
-0.15520833333333334 x 100 = -15.52%