Wholesaling/Earnest money deposit????

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I just put a property under contract in south philly today. On the purchase contract with seller I stated that Earnest money deposit would be 2500 to title company . When I find my end buyer, is it ok for me to make the earnest money deposit for end buyer 5k? Or should I just keep it at 2500 for end buyer? Also if the end buyer backs out where does that earnest money go??

Thank you.