In order to establish an electricity price system that is conducive to energy conservation and emission reduction, and to guide users to use electricity reasonably, my country implements a tiered electricity price. The details of the tiered electricity price in a certain area are as follows: if the monthly electricity consumption of household users is within 180 kWh (including 180 kWh), 0.573 yuan per kWh; Part, 0.873 yuan per degree. According to this electricity price, how much electricity should be paid by a family user who consumes 550 kilowatt-hours of electricity a month?
为了建立有利于节能减排，引导用户合理用电的电价体系，我国实行阶梯电价．某地区阶梯电价明细如下：家庭用户每月用电量在180度以内(包含180度)的，每度0.573元；超过180度但未超过400度的部分，每度0.623元；超过400度的部分，每度0.873元．按这个电价，一家庭用户一个月用电550度，应交电费多少元？
<gadget id="calculator">180 * 0.573</gadget>
<output>103.14</output>

<gadget id="calculator">400 - 180</gadget>
<output>220</output>

<gadget id="calculator">220 * 0.623</gadget>
<output>137.06</output>

<gadget id="calculator">550 - 400</gadget>
<output>150</output>

<gadget id="calculator">150 * 0.873</gadget>
<output>130.95</output>

<gadget id="calculator">103.14 + 137.06 + 130.95</gadget>
<output>371.15</output>

<result>371.15</result>