What is the equation for the present value of a growing perpetuity with a payment of C

Question:

What is the equation for the present value of a growing perpetuity with a payment of C one period from today if the payments grow by C each period?

Perpetuity
Perpetuity refers to payments that are made without an end or maturity date. A perpetuity is classified as an annuity, which is something that earns a dividend or receives a payment at a regularly scheduled interval, generally yearly. So, how...