This residual calculation is based on the vehicle: year, make, model, style, options, loan term, odometer reading, and annual mileage selection at loan inception. Insurable valuations utilizing these factors are supplied to AFG by the Automotive Lease Guide (ALG). The ALG is the nationally recognized authority of vehicle residual value projections. ALG data is regularly imported and updated into the custom Residual Value and Payment Quoting Calculator set up for use by your financial institution.