Following are forecasted sales, NOPAT, and NOA for AT&T for $2019$ through $2022$

Note: Complete the entire question in Excel and format each answer to two decimal places. Then enter the answers into the provided spaces below with two decimal places.

a$.$ Forecast the terminal period values assuming the following terminal period growth rate.

Assumption

b$.$ Estimate the value of a share of AT&T common stock using the residual operating income $($ROPI$)$ model as of December $31,2018$ using the following assumptions and the information above.