Mingming's father saved a two-year deposit with an annual interest rate of 3.96%. Mingming calculated and found that after deducting 5% interest tax at maturity, he could just buy himself a calculator worth 188.1 yuan. How much did Mingming's father deposit in the bank? ?
明明的爸爸存了年利率为3.96%的两年期存款，明明计算发现：到期扣除5%的利息税后刚好可以为自己买一个价值188.1元的计算器，明明的爸爸存入银行多少钱？
<gadget id="calculator">3.96 / 100</gadget>
<output>0.0396</output>

<gadget id="calculator">0.0396 * 2</gadget>
<output>0.0792</output>

<gadget id="calculator">5 / 100</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">0.0396 * 2 * (1/20)</gadget>
<output>0.00396</output>

<gadget id="calculator">0.0792 - 0.00396</gadget>
<output>0.07524</output>

<gadget id="calculator">188.1 / 0.07524</gadget>
<output>2_500</output>

<result>2_500</result>