# What is the difference between quoted price and theoretical value of a bond?

When we refer to "quoted price" of bond, or "clean price", it is equivalent to refer to his "present value" or "theoretical value", which corresponds to the price that I invest in the bond?

For example, for a fixed coupon bond $C_t$, it is given by: $$P=\sum_t\frac{C_t}{(1+r)^t}+\frac{VR}{(1+r)^n}$$ where VR is the nominal value of the bond and r is the rate of yield