A short position in one wheat futures contract was opened on June 10 at $5.2850/bu and closed on August 14 at $4.9975/bu. The size of one contract is 5,000bu. What was the net change in the value of the contract?
a) $1,437.50
b) -$1,437.50
c) $1,442.50
d) -$1,442.50