A woman walks into a store and steals $100 she comes back and buys $70 worth of goods with the $100, the owner gives her$30 in change how much did the owner lose?

The answer is $100.

Amount she steals = $100

Amount she bought goods = $70

Amount the owner returns as change = $30

Amount owner loses=?

Amount she steals + amount of goods - amount she gives to owner + amount owner returns as change = $100 + $70 - $100 + $30 = $200 - $100 = $100