Number of SharesStock Price=Market Capitalization

Callaway Golf (ELY)93.8$8.76=$821

Alaska Air Group (ALK)124.7$80.77=$10,074

Entergy (ETR)262.5$75.92=$19,928

Yum! Brands (YUM)408.7$77.77=$31,875

General Electric (GE)9,331.0$30.34=$283,091

The price of Entergy stock has risen to $85. What is the market value of the firm's equity if the number of outstanding shares does not change?

I am getting 22,312.5 but the question is asking for it the be in Billions.

Second question requests using Table 2.2 (attached) to determine interest rate percent.

How do I determined whether the company is AAA, AA, A, BBB, BB, or B? And how do I determine it's interest rate?

Thank-you for any help!

TABLE 2.2 Interest rates on long-term corporate bonds, Credit Rating Interest Rate March 2016. The interest rate is AAA 2.59% lowest for top-quality (AAA) AA 2.62 issuers. The rate rises as credit quality declines. A 3.03 BBB 4.32 BB 5.62 B 8.32 Source: Thomson Reuters