-87.49% is the change from 959 to 120
Calculation steps:
[( 120 - 959 ) ÷ 959] x 100 = -87.49%
Formula
Percentage change = [(120 - 959) / 959] x 100
Subtract the new number by the original number
120 - 959 = -839
-839 ÷ 959 = -0.8748696558915537
-0.8748696558915537 x 100 = -87.49%