-90.94% is the change from 960 to 87
Calculation steps:
[( 87 - 960 ) ÷ 960] x 100 = -90.94%
Formula
Percentage change = [(87 - 960) / 960] x 100
Subtract the new number by the original number
87 - 960 = -873
-873 ÷ 960 = -0.909375
-0.909375 x 100 = -90.94%