Last year, Xiaoying's father's unit issued a year-end bonus. After deducting the bonus tax of 160 yuan, the net bonus was 3,040 yuan. What is the tax rate for the bonus?
去年小瑛的爸爸单位发年终奖，扣除奖金税160元后，实得奖金3040元，奖金的征税率是多少？
<gadget id="calculator">3_040 + 160</gadget>
<output>3_200</output>

<gadget id="calculator">160 / 3_200</gadget>
<output>1/20 = around 0.05</output>

<result>1/20 = around 0.05</result>