repayment? Members of a family estimate that they will need #4700 000 to improve their house in 3 years' time. They deposit #550 000 at 5% per annum compound interest. They add #25 000 at the end of the first year and further #35 000 at the end of the second. Find their total savings after 3 years. b By how much are their savings greater or less than the 700 000 needed? ​