Lets see his earnings:
25.67
37.85
Add it up to get:
$63.52
His expenses are:
19.99
22.07
Add it up to get:
42.06
His his balance would be:
Earnings - Expenses
63.52 - 42.06 = $21.46
He should have $21.46 as his balance.
He mistakenly added earnings and expenses.
