The Sandbox's Company has cash needs of P5 million per month. If Sandbox needs more cash, it can sell marketable securities, incurring a fee of P300 for each transaction. If Sandbox leaves its funds in marketable securities, it expects to earn approximately 0.50% per month on their investment.

1. If Sandbox gets a cash infusion of P1 million each time it needs cash, how many transactions would be associated with its cash investment?