Your plan to purchase your first house 6 years from today. You want to have $10,000 saved at that time for your down payment. If your savings account earns 4.5% annual interest, how much must you deposit TODAY in order to have $10,000 available in 6 years?

( Please explain how to calculate this with Financial Calculator HP10bii+.) (If possible please also explain the use of two shifts sign which are red one and blue one. Thank you.)