31.08% is the change from 740 to 970
Calculation steps:
[( 970 - 740 ) ÷ 740] x 100 = 31.08%
Formula
Percentage change = [(970 - 740) / 740] x 100
Subtract the new number by the original number
970 - 740 = 230
230 ÷ 740 = 0.3108108108108108
0.3108108108108108 x 100 = 31.08%