Mack Inc. leases computer equipment to customers under sales-type leases. The equipment has no residual value at the end of the lease and the leases do not contain purchase options. Mack desires a return of 6% interest on a seven-year lease of equipment with a fair value of $857,965. The present value of an annuity due of $1 at 6% for seven years is 5.917. What is the total amount of interest revenue that Mack will earn over the life of the lease?