Simplify the following text for a Grade 14 native English-speaking person.
Original: The majority of the Party 's income comes from grants made by the retail co-operative societies of the UK , and from fees received for managing the political affairs of Co-operatives UK , formerly known as the Co-operative Union , an organization linking all co-operatives operating in the UK .
Simplified: Most of the partyâ s money is from grants made by the retail co-operative societies , and from the fee charged for managing the political affairs of Co-operatives UK , formerly known as the Co-operative Union .