Answer: 80%
Step-by-step explanation:
If the margin requirement was 25% then the amount of cash you invested is;
= Total value * margin requirement
= 5,000 * 25%
= $1,250
The price increased to $60 and now you have $6,000.
The return is;
= (New Price - Old Price) / Invested amount
= (6,000 - 5,000) / 1,250
= 80%