Answer the following question, with explanation first.
Françoise sells pots of lily of the valley to fund humanitarian work. She buys them at €12 each and sells them at a 25% higher cost. How much will she give back to the association by selling 150 pots of lily of the valley?

450
The benefit of selling one pot is 12 * 25 / 100 = €3.

So, Françoise will give 150 * €3 = €450 to the association.

.

So, the answer is 450