Calculate Mortgage Payments Using HP Calculator
	Having Certain Amount for Down Payment:     _____________________  enter      House Price     _____________________  minus key (-)      Amount to Put Down                                            pv key     _____________________  g i  keys       Mortgage Interest Rate     _____________________  g n keys         # of Years                                            payment key                                            result = monthly payment                                            including taxes & insurance
		Using Percentage for Down Payment:     _____________________  enter      House Price              20 for example     _____________________   percent key (%)      Down Payment %                                            minus key (-)                                            pv key     _____________________  g i  keys       Mortgage Interest Rate     _____________________  g n keys         # of Years                                            payment key                                            result = monthly payment                                            including taxes & insurance