1.75% is the change from 915 to 931
Calculation steps:
[( 931 - 915 ) ÷ 915] x 100 = 1.75%
Formula
Percentage change = [(931 - 915) / 915] x 100
Subtract the new number by the original number
931 - 915 = 16
16 ÷ 915 = 0.017486338797814208
0.017486338797814208 x 100 = 1.75%