Answer:
40%
Explanation:
Initial margin is the the amount of liability given by the lender initially.
Actual margin is the at a specific time current value of a collateral less any liability to the lender.
Total purchase value = 300 x $30 = $9,000
Initial Margin value = $9,000 x 50% = $4,500
Today's value = 300 x $25 = $7,500
Remaining value = $7,500 - $4,500 = $3,000
Actual Margin is the remaining value as compared to current value of the collateral
Actual Margin = Remaining Margin / Today's value = $3,000 / $7,500 = 0.40
Actual Margin = 40%
