Given that you are bearish on a stock; you decide to short 100 shares at the market price of 32USD per share.

How much in cash/equities must you place into your brokerage account if the brokers initial margin requirement (IMR) is half the value of the short position?

And How high can the price of the stock go before a margin call is received given that the maintenance margin is 30 percent of the value of the short position?