-42.71% is the change from 960 to 550
Calculation steps:
[( 550 - 960 ) ÷ 960] x 100 = -42.71%
Formula
Percentage change = [(550 - 960) / 960] x 100
Subtract the new number by the original number
550 - 960 = -410
-410 ÷ 960 = -0.4270833333333333
-0.4270833333333333 x 100 = -42.71%