Step $1$ of $4$The following considerations should be kept in mind by Person G while taking any action:If the firm uses the large vessel in place of Tashtego, the revenue will reduce to $$7,855\mathrm{.}3$ in spite of $$20,274\mathrm{.}7.$ There are certain increases in variable cost when the big ship is being used, like stopping for $2$ times. Also there will be increase in due postage because of the huge ship costs.