17.02% is the change from 840 to 983
Calculation steps:
[( 983 - 840 ) ÷ 840] x 100 = 17.02%
Formula
Percentage change = [(983 - 840) / 840] x 100
Subtract the new number by the original number
983 - 840 = 143
143 ÷ 840 = 0.17023809523809524
0.17023809523809524 x 100 = 17.02%