Indicate the effect (increase, decrease, no change, or not enough information) that each of the following situations has on break-even unit sales. If you answer 'not enough information', list the information that you need in order to be able to determine the effect.

a A retail business purchases price tags to use in place of the stickers it has used in the past.

b An athletic equipment store leases more retail space.

c A bakery increases its advertising expenditure.

d A merchandiser plans to increase the selling price of its product. To counteract potential decreases in sales, the merchandiser also plans to increase the amount of per-product commission that the sales staff earn.

e An accounting firm plans to increase its billing rate per hour.

f A retail business has found a supplier that will provide the same merchandise its old supplier provided, but at a lower price.

g A private boarding school in Sydney installs air conditioning in its dormitories.

h A retail business reduces advertising expenses and increases the commissions of its sales force.

i Instead of having its office building cleaned by a cleaning service, a business plans to hire its own cleaning crew.