An investor takes a long position in a $3$ December gold futures contract on June $5,$ the contract size is $100oz.$ and the futures price is $$900.$ An FCM sets the Initial Margin requirement for $$2,500$ per contract with a Maintenance Margin of $$2,000$ per contract. Using the provided information, calculate the daily price fluctuations and determine if this investor will ever receive a Margin call and the amount of the margin call.

Hint: there are three contracts. Calculate the total initial and maintenance margins before proceeding with your other calculations.