In order to calculate the value of a product after a 25% discount, we can multiply the original value by (100% - 25%), that is, 75% or 0.75.
Then, to calculate a discount of 14%, we can multiply the previous value by (100% - 14%), that is, 86% or 0.86.
If we have two discounts acting on the price, we just need to multiply everything together:

Therefore the price with both discounts is equal to $4.52.