Xiao Ming's father received a labor fee of 3,000 yuan, of which 800 yuan was tax-free, and the rest was taxed at a rate of 20%. How much did Xiao Ming's father really earn?
小明的爸爸得到一笔3000元的劳务费用，其中800元是免税的，其余部分按20%的税率缴税．小明爸爸实得多少元？
<gadget id="calculator">3_000 - 800</gadget>
<output>2_200</output>

<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">2_200 * (1/5)</gadget>
<output>440</output>

<gadget id="calculator">3_000 - 440</gadget>
<output>2_560</output>

<result>2_560</result>