Let's calculate according to the plan you gave us (it should also be a better plan)

Suppose the initial deposit of high school is X yuan, and the initial deposit of university is Y yuan.

Equation: x * (1+0.027) =10000 Here, we find out the preparation cost of senior high school x=9373.

Y * (1+0.027) (1+0.027) = initial deposit of 20000 university y= 18962.

X+y= initial deposit amount