-2.14% is the change from 980 to 959
Calculation steps:
[( 959 - 980 ) ÷ 980] x 100 = -2.14%
Formula
Percentage change = [(959 - 980) / 980] x 100
Subtract the new number by the original number
959 - 980 = -21
-21 ÷ 980 = -0.02142857142857143
-0.02142857142857143 x 100 = -2.14%