3.39% is the change from 915 to 946
Calculation steps:
[( 946 - 915 ) ÷ 915] x 100 = 3.39%
Formula
Percentage change = [(946 - 915) / 915] x 100
Subtract the new number by the original number
946 - 915 = 31
31 ÷ 915 = 0.033879781420765025
0.033879781420765025 x 100 = 3.39%