The question is looking for what 2021 would look like.

So far, I got

2021 | 1,200 | 1.9 | 0.9 | $10.65 | $?????

I am not sure how to calculate revenue from these numbers,

4. The University Club forecasts its monthly luncheon sales based on historical trends and planned promotion. The January luncheon activity for the past three years has been as follows: Frequency Average Member Visit Club Membership 2018 11,000 2019 1,100 2020 1,200 1.5 1.6 1.7 Average Price $8.00 $8.80 $9.68 Total Lunch Revenue $18,000.00 $24,780.80 $33,570.24 VO Assume for 2021, promotional efforts will double the annual change in frequency experienced in recent years and the change in average guests per member visit, that membership will stabilize at the 2020 level, and that the average luncheon price will increase by the same percentage experience in the recent past