Answer:
Persuade
Step-by-step explanation:
The purpose of the given paragraph is to persuade. The author wants his club members to pay an additional $50 for membership and vote yes. They give an explanation as to why this needs to be done - the prices of transportation and parking have increased, and the club trips and activities will be possible only if the membership cost increases. That is how they are trying to convince, to persuade, their members to vote in favor of this increase.