I have a partly done calculator that I don't fully understand. It consists of a Loan Payment calculator in php/ajax. Right now it is working. I just need a math wizard to fix the calculations so it works properly.
The user inputs rate, time of loan, total value, down payment, extra payments, frequency of extra payments and amount, maybe one other field. The calculator outputs the payments.
Please PM me if you're interested for a link to the calculator and an excel file that already works, that I am using to compare the calculations.
Good experience in programming skills and Complex search modules.
Have worked on Ecommerce and other calculation application. Can get your work done ASAP.