-64.38% is the change from 960 to 342
Calculation steps:
[( 342 - 960 ) ÷ 960] x 100 = -64.38%
Formula
Percentage change = [(342 - 960) / 960] x 100
Subtract the new number by the original number
342 - 960 = -618
-618 ÷ 960 = -0.64375
-0.64375 x 100 = -64.38%