Sample Computation:
Lot area 80 sqm
Total Contract Price 520,000
20% Down Payment 104,000
Less Reservation Fee 10,000
Net Down Payment 94,000
6 mos. to pay 15,666.66
(Outright Down Payment 93,600 SAVE 10,400)

80% Balance 416,000

1st OPTION
2 yrs. no interest 17,333.33

2nd OPTION
5 yrs. to pay 6,933
2nd to 5th yr. 9,094