Answer :
To find 25% of $136 - you need to calculate the following:
25 • 136 / 100 = 3,400 / 100 = $34
$136 - $34 = $102
Mike has $102 left to use.
25 • 136 / 100 = 3,400 / 100 = $34
$136 - $34 = $102
Mike has $102 left to use.