19.6% is the change from 704 to 842
Calculation steps:
[( 842 - 704 ) ÷ 704] x 100 = 19.6%
Formula
Percentage change = [(842 - 704) / 704] x 100
Subtract the new number by the original number
842 - 704 = 138
138 ÷ 704 = 0.19602272727272727
0.19602272727272727 x 100 = 19.6%