What EA is necessary for asset formation

What would you do if a bank said it would issue a time deposit at an annual rate of50%?

First, please imagine what kind of figure it would be mathematically.

If the deposit amount is Y = 1,000,000 yen, then the amount after n years is Y(n).

Y(1) = (Y + Y × 0.5)

Y(2) = (Y(1) + Y(1) × 0.5)

↓ Arrow

Y(n) = (Y(n-1) + Y(n-1) × 0.5) = (Y(n-2) + Y(n-2) × 0.5) + (Y(n-2) + Y(n-2) × 0.5) × 0.5

＝

＝ (1 + 0.5) ^ n