Your grandfather left you $$681,395$ in his will, you decided to not touch it until it has grown to $$1,000,000.$ If you believe you can earn $10\mathrm{.}00\%$ per year on your investment portfolio, how long will it take for your original investment of $$681,395$ to turn into $$1,000,000.$ Please respond in years, like $8\mathrm{.}45$ fir $8\mathrm{.}45$ years.

You have a balance of $$82,207$ in an investment account you opened five years ago,except for this initial amount you have not made any other deposit into this account, if you have earned an annual rate of return of $4\%$ each year what was your initial deposit when you first opened this account, round to $2$ decimals.