First, find the price (P) of the item and its discount rate

Let me show you an example;
Anna want to buy a dress worth P402 with a discount rate of 15%.How much money did Anna need to buy the dress?

The steps to solve:

1.Find the 15% of P402 by using this formula
402*.15 which is 60.3
2.Subtract 402 by 60.3

And you will get the discounted price which is P341.7

Anna need P341.7 in order to buy the dress