Bridge Corp. operates in Alberta $($a province that does not have PST or HST$)$ and sells only fully taxable and zero$-$rated supplies. Bridge Corp. reports the following amounts $($net of any GST collected or paid$)$ in its financial records for the current year:

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Among the sales, $\backslash (\backslash$$ $1,005,000\backslash )$ was fully taxable supplies and the remaining was zero$-$rated. Purchases of merchandise exceeded Cost of Goods Sold by $\backslash (\backslash$$ $120,000\backslash ),$ and all merchandise purchased and sold was fully taxable supplies. The purchase of furniture and fixtures used $\backslash (70\backslash \%\backslash )$ for fully taxable supplies and $\backslash (30\backslash \%\backslash )$ for zero$-$rated supplies.

Which of the following is the correct amount of GST payable $($or refund$)$ for Bridge Corp. in the current year?

A$.\backslash$$$4,000$ GST refund

B$.\backslash (\backslash$$ $3,750\backslash )$ GST payable

C$.\backslash$$$11,000$ GST payable

D$.\backslash$$$1,250$ GST refund

Information

Sales

$\backslash$$ $1,250,000$

Cost of Goods Sold

$\backslash$$ $810,000$

Depreciation expense $\backslash$$ $150,000$

Salaries and wages

$\backslash$$ $270,000$

Capital expenditures $\backslash$$ $100,000$

Plz explain me with the detailed solving process to understand and get the answer. Thanks