As a general guideline, many experienced players suggest seeing a flop with around 15-20% of hands in a full-ring game. However, this percentage can change based on factors such as your skill level, the tendencies of your opponents, and the specific dynamics of the game you're playing.
Betting around 3x the big blind + 1 for every limper when raising pre-flop is a solid formula to stick with. Adjust your bet sizing depending on situational factors. Post-flop bets should always be based on the size of the pot and betting around 3/4 of the pot is a good benchmark.