Currently, a company has a beginning PP&E balance $($at the beginning of the year$)$ of $$300,000$ with a total of three assets.

Asset $1$: Annual depreciation expense of $$20,000$

Asset $2$: Annual depreciation expense of $$40,000$

Asset $3$: Annual depreciation expense of $$10,000$

Throughout the year, the company also purchased two more assets:

Asset $4$: $$50,000$

Asset $5$: $$80,000$

What is the company's net PP&E balance at the end of the year?