Percentages - Percentages involving Finances: Profit and Loss

A laptop is on sale for \(\$2520\) after a \(16\%\) discount.

1. Find the original price of the laptop.

   [2]

The retailer bought the laptop from its supplier for \(\$1800\).

2. Calculate the percentage profit made when the laptop is sold for \(\$2520\).

   [2]

A customer may instead purchase the laptop by paying \(20\%\) of the sale price as a deposit, followed by \(15\) monthly payments of \(\$180\).

3. Calculate the additional amount the customer pays by using the instalment plan instead of paying \(\$2520\) immediately.

   [3]