Markup Discount and Tax Calculations with Step by Step Solutions

Begin by calculating the original price before any increases or reductions. For a given price increase, use the formula new price = original price × (1 + percentage increase) to determine the adjusted price. This method ensures accuracy in pricing calculations for products and services.

Next, handle reductions by applying a similar approach, but subtracting the percentage decrease. The formula is new price = original price × (1 – percentage decrease). This helps you find the final sale price after any reductions are applied.

For situations involving additional charges like service fees or other extra costs, apply the percentage to the current price using new total = price × (1 + additional charge percentage). Always ensure the total is calculated after all previous adjustments are accounted for.