4.3% is the change from 931 to 971
Calculation steps:
[( 971 - 931 ) ÷ 931] x 100 = 4.3%
Formula
Percentage change = [(971 - 931) / 931] x 100
Subtract the new number by the original number
971 - 931 = 40
40 ÷ 931 = 0.04296455424274973
0.04296455424274973 x 100 = 4.3%