Commission on Cash Basis and Installment Basis 1. Demilou Bato is a sales representative at a gadget store. Last week, she was able to sell 3 mobile phones which worth P13,599, P9,299, and P19,999. All buyers of those items will pay it in installment basis to be paid monthly in 18 months with no interest. Demilou is expected to earn 7% in commission on the collection. How much commission will Demilou Bato earn in total? 2. Merlin Mermer is a car salesman earning commission at a rate of 23%. He closed a deal for a car whose balance of P650,000 will paid monthly in 3 years at an interest rate of 6%. Compute the total commission Merlin Mermer will earn once total payment is completed. 3. Annie Mae Karton works as a sales agent for a certain company. She was able to sell a product worth P42,000 at an interest of 4% to be paid in 4 equal monthly payments. For the 1st term, she will earn 5.5% in commission which will decrease by 0.5% next term and for each of the succeeding outstanding balances. Compute Annie Mae' commission for each of the term and in total