In each of four independent cases, the amount of differential revenue or differential cost is as follows $($parentheses indicate decreases$)$:

$1234$

Increases $($decreases$)$ in:

Revenue $$18,000$ $$0??$

Costs $??$ $$(12,000)$ $$0$

For each case, determine the missing amount that would be necessary for the net differential amount to be:

a$.$ $$8,000$

Use a negative signs with answers to reflect decreases.

$1234$

Increases $($decreases$)$ in:

Revenue $$18,000$ $$0$ Answer

Answer

$8,000$

Costs Answer

$10,000$

Answer

$$(12,000)$ $$0$

b$.($$$4,000)$

Use a negative signs with answers to reflect decreases.

$1234$

Increases $($decreases$)$ in:

Revenue $$18,000$ $$0$ Answer

Answer

Costs Answer

$22,000$

Answer

$4,000$

$$(12,000)$ $$0$