15.48% is the change from 840 to 970
Calculation steps:
[( 970 - 840 ) ÷ 840] x 100 = 15.48%
Formula
Percentage change = [(970 - 840) / 840] x 100
Subtract the new number by the original number
970 - 840 = 130
130 ÷ 840 = 0.15476190476190477
0.15476190476190477 x 100 = 15.48%