How much money did the owner lose-Riddle

Riddle 
Dhamaka Singh walks into a store and steals a $100 bill from the register without the owner's knowledge.
He then buys $70 worth of goods using the $100 bill and the owner gives $30 in change.
How much money did the owner lose?

    $100. The $100 bill that was stolen was then given back to the owner. What the owner loses is the $70 worth of goods and the $30 in change, which makes for a total of $70 + $30 = $100. The owner has lost $100.

Mindyourlogic Riddle: Answer:
How much money did the owner lose?-Riddle