In cash games, decrease your c bet frequency to closer to 0% than to 100%. C bets I see as a major flaw in cash game players
Board texture needs to be a determining factor but as far as I've learned ~70% is a good cbet percentage?
I'm probably closer to 25% in a Multi way pot. And over 50% heads up.
I find it as a major leak in a lot of players I play with, if the preflop aggressor gets checked too or is early to act they are firing out 90% c bets heads up or multi way, if I'm in the hand with players like this I call 95% of the time and make some decisions on the turn
When considering when to c-bet, thinking of it in terms of a percentage of the overall number of hands which you raised preflop and got called is a really bad approach imo. Need to take into account: board texture, position, number of opponents, and gameflow (which itself includes a number of factors including your table image and your opponents' observed behavior).
The most simplified test that attempts to take into account at least two of those factors is Bart Hanson's, which advises you to rate the board texture from 1 to 10 (worst to best c-betting texture) and then rate your own table image at the moment from 1 to 10 (again, worst to best). If, when added together, those two ratings equal 10 or more, c-bet. If not, don't.
As I said, a very simplified test, but at least it gets us into thinking about the relevant factors in a structured way.
10/20 rule (calling preflop to set mine or with suited connectors) and rule of 2 (double the outs and that is ~ your percentage to make your hand on the next card to come)... correlating that to what it costs to call and what you stand to win.... was mind blowing for me many years ago.
This is another of Bart's concepts that I also found helpful in learning intermediate NLHE strategy and another, like the c-bet test above, which I don't know is exactly correct, but again gets us thinking more deeply and in a more objective fashion about what to do in some spots.
Also, FWIW, he later changed his advice to 15/30/45 (pocket pairs/suited connectors/suited gappers). For anyone not familiar, the concept is that if you are not 15x (or 30x or 45x) the raise size effective (you and the raiser both have 15x the bet), then you cannot profitably call to make your hand.