Master Zhang and Master Li received a salary of 2,000 yuan respectively. Master Zhang has deposited in the bank for two consecutive years in the form of one-year deposits, and Master Li has deposited in the bank for two years in the form of two-year deposits. How much less interest does the master earn than Master Li? (The annual interest rate of one-year bank deposits is 2.25%, and the annual interest rate of two-year deposits is 2.79%. Interest tax is temporarily exempted)
张师傅和李师傅分别领到了2000元的工资，张师傅采用一年期存款的方式在银行连续存了两年，李师傅采用两年期存款的方式在银行存了两年，到期后张师傅比李师傅少获得多少元的利息？(银行一年期存款的年利率是2.25%，两年期存款的年利率是2.79%，暂免利息税)
<gadget id="calculator">2.79 / 100</gadget>
<output>0.0279</output>

<gadget id="calculator">2_000 * 0.0279 * 2</gadget>
<output>111.6</output>

<gadget id="calculator">2.25 / 100</gadget>
<output>0.0225</output>

<gadget id="calculator">2_000 * 0.0225 * 2</gadget>
<output>90</output>

<gadget id="calculator">111.6 - 90</gadget>
<output>21.6</output>

<result>21.6</result>