The table below show the pounds of candy a company sold in the months leading up to October.
Month | Pounds of Candy Sold |
June | 145 |
July | 147 |
August | 172 |
September | 179 |
| 643 |
In October they sold 7 times as many pounds of candy as they did in the previous 4 months combined. How many more pounds did they sell in October than were sold in the previous 4 months?