When there's a school trip, parents need to pay a great part of it, but for people in a poorer situation that payment can be very high. Is there any possibility every child of the class can go on the trip?

The people who can't pay the school trip, they have to pay only a little part of it, (f.e. when they have to pay 100 euros, they only have to pay 20 euros and the other part the school will pay.) We get this money of our annual pancake selling, so we can let all the children go on the trips.