Diablo Company leased a machine from Juniper Corporation on January $1,2016.$ The machine has a fair value of $7,012,781.$ The useful life of the machine was expected to be five years with no residual value. The appropriate interest rate for this lease is $8\%.$

A$.$ Determine the amount of each lease payment

B$.$ What would you change if the lease agreement called for Diablo to pay four equal lease payments and the first payment is made on the date the lease is signed $?$