16.79% is the change from 840 to 981
Calculation steps:
[( 981 - 840 ) ÷ 840] x 100 = 16.79%
Formula
Percentage change = [(981 - 840) / 840] x 100
Subtract the new number by the original number
981 - 840 = 141
141 ÷ 840 = 0.16785714285714284
0.16785714285714284 x 100 = 16.79%