1 Ratio and proportion iGCSE GCSE Revision

A student played a computer game 500 times and won 370 of these games. He then won the next 𝑥 games and lost none. He has now won 75% of the games he has played.
Find the value of 𝑥.
The cost of running the party is $264. This is an increase of 10% on the cost of running last year's party. Calculate the cost of running last year's party?
iGCSE Maths, GCSE Maths