-71.88% is the change from 960 to 270
Calculation steps:
[( 270 - 960 ) ÷ 960] x 100 = -71.88%
Formula
Percentage change = [(270 - 960) / 960] x 100
Subtract the new number by the original number
270 - 960 = -690
-690 ÷ 960 = -0.71875
-0.71875 x 100 = -71.88%