Amortization schedules, discounting, APR, buydown, discounted cash flow and yield calculations. If you want ACCURATE numbers, call Ron. And his team have done all of the lettering on MrDuctCanada's trucks. Fast, friendly, and reasonably priced! S website leaves something to be desired, but the quality of their Renovations, Bathrooms, Kitchens, Floors, Decks, and Fences is exceptional! I guess that is why they are builders and not web designers. 905-635-0454. We have included them because we were impressed.