2.59% is the change from 966 to 991
Calculation steps:
[( 991 - 966 ) ÷ 966] x 100 = 2.59%
Formula
Percentage change = [(991 - 966) / 966] x 100
Subtract the new number by the original number
991 - 966 = 25
25 ÷ 966 = 0.025879917184265012
0.025879917184265012 x 100 = 2.59%