Draw cash flow diagram if it's necessary.

[Q5] (30 points) Mr. Robert Harris, who works for a company in the private sector, plans to retire after 30 years. For this purpose, he plans to transfer 7% of his monthly net salary to a savings account with a compound yield of 9% per month until the end of each month. It will make the first payment one month after today and will start earning as soon as each payment is credited. As long as he works, he expects his salary to increase by 8% at the end of each year. The first salary increase will take place exactly one year after today. Mr. Harris's net salary today is $ 3000, how much money will be accumulated in the savings account when he retires