If inflation causes prices to rise at a rate of 3% per year and the approximate doubling time is Rule of 70 = T double ≈ 70/P ≈ 70/3≈ XXXXXXXXXX or 23.3yrs. How do I calculate the answer to the...

If inflation causes prices to rise at a rate of 3% per year and the approximate doubling time is
Rule of 70
=
T
_double
≈ 70/P ≈ 70/3≈
23.3333333

or 23.3yrs.

How do I calculate the answer to the following question?

By what factor will prices increase in 10 years?