On January 1, a company had these assets, liablilities, and equity

Cash $100

Inventory $140

Accounts payable $70

Paid In Capital $150

Retained Earnings $20

During the year, the company entered into the following transactions:

-sold inventory costing $140 for a total of $200; cash of $30 was received and the remaining $170 was put on account

-paid cash for rent of $45

-paid cash dividends of $10

What is the companies total equity at the end of the year?

(is there a formula for this?)