8.23% is the change from 778 to 842
Calculation steps:
[( 842 - 778 ) ÷ 778] x 100 = 8.23%
Formula
Percentage change = [(842 - 778) / 778] x 100
Subtract the new number by the original number
842 - 778 = 64
64 ÷ 778 = 0.08226221079691516
0.08226221079691516 x 100 = 8.23%