The calculator is quick and easy to use. Use the app to calculate New Home or Refinance FHA, Conventional, Jumbo, Rural, and VA loans. Affordability calculations can be done to determine what size of loan works for you. Enter a few parameters such as the sales price, insurance and tax amounts, and Premier Residential Mortgage will calculate your monthly payments. It handles all the details of calculating necessary MI and required down payment amounts by understanding the loan type you are looking to perform. When you are done with your mortgage loan calculation, save the quote for later or contact a qualified mortgage broker right from inside the app! Premier Residential Mortgage. Document scanner included in the app.