# Jack works in a bookstore. He has 300 books to stock on the shelves. So far, he has stocked 120 books today. What percent of the books does he have left to stock?

Nov 19, 2016

Jack has 60% of the books left to stack.

#### Explanation:

Out of $300$ books, $120$ have been stacked. That leaves $\left(300 - 120\right) = 180$ books to be stacked. We can determine the percentage ($x$) by the equation:

$300 \times \frac{x}{100} = 180$

$3 x = 180$

Divide both sides by $3$.

$x = 60$