particle physics - Where does the majority of the mass of the usual matter come from?

I apologize in advance to experts for the naivety of the question. It should be a duplicate but I didn't find any satifying question or answer about that.

The proton is composed by two up quarks and one down quark.

mass(proton) $\sim 940 \ MeV/c^2 $
mass(up) $\sim 2.3 \ MeV/c^2 $
mass(down) $\sim 4.8 \ MeV/c^2 $

It follows that: $2$mass(up) $+$ mass(down) $\sim 9.4 \sim \frac{1}{100}$ mass(proton).

Question: Where does $99\%$ of the remaining mass of the proton come from?