Find the percent of increase.
Round to the nearest tenth of a percent.
$2.40 to $4.10
Subtract the beginning value from the ending value and divide by the beginning value ...
$4.10 - $2.40 = $1.70
$1.70 ÷ $2.40 = 0.7083333...
Turn this into a percentage: 70.83333...%
and round: 70.8%.
