Costs, scale of production and break-even analysis — practice question

Explain four ways in which the break-even chart in Appendix 3 could assist SSE.

Consider the likely impact of each of these three changes on SSE. Which change do you think will have the largest effect on SSE's profit? Support your answer. • A depreciation in the currency of country Z • An import tariff introduced on sports helmets imported into country Z • Quotas introduced on sports helmets in countries where SSE sells its products