An investor has equity of $250,000 in SPY (S & P 500 ETF). He doubles the investment using the brokers margin assuming a 0.5 initial margin. If the maintenance margin is 0.35, determine:

1. The SPY current price
2. Price at which there will be a margin call (MC)
3. % decline in which there will be a MC
4. Required action if there is a MC
5. If SPY had increased by 14% in one year, calculate the ROI.