Answer:
A Sales Maximisation objective aims at increasing the cash value turnover/Sales Income/Revenue. Costs and expenses are not taken into account.
Profit maximisation seeks to increase the bottom-line profit, regardless of sales or other considerations. Profit = sales less costs. If sales reduce, but if costs reduce by a greater amount, profit will increase. If sales are less in such a scenario, the work required to achieve sales may be less, so more profit is being made with less effort, which would be a good indicator of the organisation's efficiency and ability to trade successfully despite business challenges.
Profits can also be increased by maintaining at costs at their present level, and increasing the selling price. Assuming that the volume of sales does not decrease, bottom-line profits will increase.
Sales maximisation can be an valid objective if the sole aim is to increase market share or other related reasons. However, Sales Maximisation accompanied by ever-decreasing profits cannot be sustained indefinitely.