Villager Trading Gossip

So I have got a village and am try to decrease trade values cause I'm cheap ,there is no intell on the mc wiki or anything that I searched to get major_positive or minor_positive gossips on bedrock to the villagers to lowere prices ,the trading gossip doesn't work either as when I do trade with many villagers ,the prices also don't lower so which gossips do lower prices ,and if they do can you please fix them pls