P$2\mathrm{.}14$ Not long ago, Jack Edwards bought $200$ shares of Almost Anything Inc. at $$45$

he bought the stock on margin of $60\%.$ The stock is now trading at $$60$

the federal Reserve has recently lowered initial margin requirements to $50\%.$ Jack now wants to do a little pyramiding and buy another $300$ shares of the stock. What is the minimum amount of equity that he'll have to put up in this transaction?