$(1)$ Our speculator puts in an order to go long a $5,000-$bushel contract of December corn futures at $$3\mathrm{.}50,$ and the order to go

long at $$3\mathrm{.}50$ is filled on July $2$nd$.$

$(2)$ Our speculator puts in an order to go short the same December corn futures at $$3\mathrm{.}90$ on July $27,$ and the order to go short at

$$3\mathrm{.}90$ is filled in the same day.

Please fill in the last two columns of the following table