Xiaohua deposited the saved pocket money in the bank one year ago, with an annual interest rate of 3.78%. One year later, Xiaohua received a total of 207.56 yuan in principal and interest. How much money did Xiaohua deposit in the bank a year ago?
小花一年前把节省的零用钱存入银行，年利率是3.78%，一年后小花共得本金和利息207.56元，一年前小花在银行存了多少钱？
<gadget id="calculator">3.78 / 100</gadget>
<output>0.0378</output>

<gadget id="calculator">0.0378 * 1</gadget>
<output>0.0378</output>

<gadget id="calculator">1 + 0.0378</gadget>
<output>1.0378</output>

<gadget id="calculator">207.56 / 1.0378</gadget>
<output>200</output>

<result>200</result>