The collection regulations of personal income tax are: personal income tax shall be levied on the part of personal income exceeding 1,600 yuan per month, and the tax rate of 5% shall be levied on the part exceeding 500 yuan. Principal Zhang paid a total of 2,050 yuan in salary and bonus last month. How much personal income tax should Principal Zhang pay?
个人所得税的征收规定是：每月个人收入超过1600元的部分要征收个人所得税，超过的部分不满500元的按5%的税率征收．张校长上个月发工资和奖金共2050元，算一算张校长应该缴纳个人所得税多少元？
<gadget id="calculator">2_050 - 1_600</gadget>
<output>450</output>

<gadget id="calculator">5 / 100</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">450 * (1/20)</gadget>
<output>45/2 = around 22.5</output>

<result>45/2 = around 22.5</result>