-12.51% is the change from 959 to 839
Calculation steps:
[( 839 - 959 ) ÷ 959] x 100 = -12.51%
Formula
Percentage change = [(839 - 959) / 959] x 100
Subtract the new number by the original number
839 - 959 = -120
-120 ÷ 959 = -0.1251303441084463
-0.1251303441084463 x 100 = -12.51%