3.17% is the change from 945 to 975
Calculation steps:
[( 975 - 945 ) ÷ 945] x 100 = 3.17%
Formula
Percentage change = [(975 - 945) / 945] x 100
Subtract the new number by the original number
975 - 945 = 30
30 ÷ 945 = 0.031746031746031744
0.031746031746031744 x 100 = 3.17%