The formula to calculate the amount after a 70% discount is:
\[ A = P - (P \times 0.70) \]
Where:
A 70% off refers to a discount where the price of an item or service is reduced by 70%. This means that the customer only pays 30% of the original price. This type of discount is often used in sales promotions to attract customers and increase sales.
Example:
Calculation:
\[ A = 100 - (100 \times 0.70) = 30 \]
