Martinez Company$$s relevant range of production is $15,000$ units to $25,000$ units. When it produces and sells $20,000$ units, its unit costs are as follows:

Amount

Per Unit

Direct materials $ $6\mathrm{.}08$

Direct labour $ $3\mathrm{.}58$

Variable manufacturing overhead $ $1\mathrm{.}58$

Fixed manufacturing overhead $ $5\mathrm{.}08$

Fixed selling expense $ $4\mathrm{.}08$

Fixed administrative expense $ $3\mathrm{.}08$

Sales commissions $ $1\mathrm{.}58$

Variable administrative expense $ $0\mathrm{.}79$

Required:

If $25,000$ units are sold, what is the total amount of variable costs related to the units sold?