A Polish farmer buys $10$ futures contracts for $1000$ kg of cattle $($each$)$ in September at PLN $4\mathrm{.}99/$

kg$.$ Delivery is scheduled for $15$ December. The commission on the contract is $25$ PLN$.$ Please calculate

the profit$/$loss of our brave investor$-$farmer at the time of delivery of the contract $($maturity$)$ if:

a$)$ the market price falls to $4\mathrm{.}96$ PLN$/$kg;

b$)$ the market price is set at $5\mathrm{.}05$ PLN$/$kg$.$

Does the amount of profit $/$ loss at the end of the contract change depending on the type of

contract: forward $/$ futures?