It sounds like that the paragraph style for the price is a Parent Style, and the other styles are "Child Styles".
What this means is that the child will follow the parent style all the time.
You can see this if you go to the style for say the Description - and edit the paragraph style.
For example, below I am editing a style I have called Description - and in the "General" area you can see the Style Name - but it's "Based On: Heading"
So if I make a change to the Heading style, say for example change the font style - then it's reflected in the Descirption.
You can go through each style and change the Based On to "No Paragraph Style".
But I wouldn't recommend that - as then if you needed to make an overall change to the font throughout - editing the Price style wouldn't reflect back through the Child Styles.
What I'd say is to go through each style and apply the colour text that it should be and update each Style so that it has the correct colour, style etc.
What this will do is break just that element of a link. For example, changing the Price style font, would still reflect - it would only be the colour of the text that would be "unlinked" from the Price style.
https://helpx.adobe.com/indesign/using/paragraph-character-styles.html