My mother deposits 10,000 yuan in ICBC and plans to coexist for 3 years. ICBC savings interest rates are as follows: deposit period of 1 year, deposit interest rate is 2.50%; deposit period of 3 years, deposit interest rate is 3.85%. How much more income will be earned when depositing for 3 consecutive years than depositing for 1 year each time (the interest due each year will no longer be deposited and no interest will be calculated).
妈妈到工商银行存1万元钱，计划共存3年．工商银行储蓄利率如下：存期1年，存款利率是2.50%；存期3年，存款利率是3.85%．连续存3年比每次存1年(每年到期的利息不再存不再计息)，到期多收入多少元．
<gadget id="calculator">3.85 / 100</gadget>
<output>0.0385</output>

<gadget id="calculator">10_000 * 0.0385 * 3</gadget>
<output>1_155</output>

<gadget id="calculator">2.5 / 100</gadget>
<output>0.025</output>

<gadget id="calculator">10_000 * 0.025 * 1 * 3</gadget>
<output>750</output>

<gadget id="calculator">1_155 - 750</gadget>
<output>405</output>

<result>405</result>