Answer and Explanation:
The missing amount is as follows:
a.
Sales revenue = Variable expense + contribution margin
= $232,804 + $130,532
= $363,336
Fixed expense = Contribution margin - operating income
= $130,532 - $21,597
= $108,935
Income tax = OPerating income - net income
= $21,597 - $15,118
= $6,479
b.
Variable expesne = sales revenue - contribution margin
= $485,168 - $171,860
= $313,308
Operating income = contribution margin - fixed expense
= $171,860 - $87,912
= $83,948
Net income = operating income - income tax
= $83,948 - $25,184
= $58,764
c.
Operating income = income tax + net income
= $21,532 + $64,596
= $86,128
Contribution margin = Fixed expense + operating income
= $146,396 + $86,127
= $232,524
Sales revenue = variable expense + contribution margin
= $102,728 + $232,524
= $335,252
d.
Variable expense = sales revenue - contribution margin
= $686,356 - $430,808
= $255,548
Operating income = income tax + net income
= $60,859 + $182,577
= $243,436
Fixed expense = Contribution margin- operating income
= $430,808 - $243,436
= $187,372
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