12.14% is the change from 840 to 942
Calculation steps:
[( 942 - 840 ) ÷ 840] x 100 = 12.14%
Formula
Percentage change = [(942 - 840) / 840] x 100
Subtract the new number by the original number
942 - 840 = 102
102 ÷ 840 = 0.12142857142857143
0.12142857142857143 x 100 = 12.14%