Exactly which font? What version of InDesign?
Can you make sure that you have applied the "Small Caps" to the text instead of "All Caps" from the control panel or from the Character Panel. The shortcut for Small Caps is "Shift+Cmd+H".
The percentage value is irrelevant if you didn't apply it.
The version is the latest one, and the font is irrelevant, I try a lot of them and I have the same problem, Besides I can change it, no problem.
The small caps are already applied in some parts of the text, and the programme do it well, but when I try to change the percentage it makes nothing:(
If the fonts you have tried actually have small caps, the percentage does nothing. ID simply then uses the small caps as designed by the font designer. The percentage thing only applies to fonts without small caps in the font(s).
At least, I think that is how it works in ID.
Thank you so much. That's the thing. It's a pity that the programme doesn't let change that.
Thank you everybody.
You can use a character style that will simultaneously change the point size to a smaller size on text set in caps, add a bit of negative horizontal scaling and also add tracking to pull those scaled caps together. It is a bit of a cludge, but it does work. However, depending upon the font used, you may also need to swap out a regular for a semi-bold or even bold to equalize the weight a bit.