Percentages - Percentages involving Finances: Profit and Loss

A company advertises a home solar panel system for \(\$14\,000\) after reducing its usual price by \(12.5\%\).

1. Calculate the usual price of the solar panel system.

   [2]

The company's total cost of supplying and installing the system is \(\$11\,200\).

2. Calculate the percentage profit made when the system is sold for \(\$14\,000\).

   [2]

A customer who does not pay in full may pay \(25\%\) of the \(\$14\,000\) price as a downpayment and then make quarterly payments of \(\$1450\) for \(2\) years.

3. Calculate the additional amount paid by the customer under this payment plan.

   [3]