Barb wants a retirement income of $$5,000$ at the beginning of each month for $25$ years if she's able to earn a return of $7\%$ on invested assets she needs $$700,000$ to find her income however this does not include any inflation adjustment by incorporating at $3\mathrm{.}5\%$ in inflation Factor what is Barb's approximate funding requirement increase stated at the time of retirement if she wants to maintain the same purchasing power of her $5000$ monthly payment