Make table, HANDWRITTEN, should atleast take 3 pages. Long sum

An investor receives payments half-yearly in arrears for 20 years. The first payment is 250, and each payment is 2% higher than the previous one. The interest rate is 6% pa effective for the first 10 years and 4% pa effective for the final 10 years. Calculate, showing all workings, the present value of the payments. [6]