In order to establish an electricity price system that is conducive to energy conservation and emission reduction and guides users to use electricity reasonably. my country implements tiered electricity prices. 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, and for the part exceeding 180 kWh but not exceeding 400 kWh, 0.623 yuan per kWh. For the portion exceeding 400 kWh, the price is 0.873 yuan per kWh. According to this electricity price, if the electricity consumption is 550 kWh a month, how much electricity fee should be paid?
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．某地区的阶梯电价明细如下：家庭用户每月用电量180度以内(包含180度)的，每度0.573元超过180度但不超过400度的部分，每度0.623元．超过400度部分，每度0.873元，按这个电价，若一个月用电550度，应缴多少元电费？
<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>