Test everyone: This is a math problem that can test whether a person has business acumen. Master Wang is a fish seller. The price of a catty of fish is 45 yuan, and it is now sold at a loss. The customer bought a kilogram for 35 yuan and gave Master Wang 100 yuan in fake money. Master Wang has no change. So I went to my neighbor and exchanged it for 100 yuan. Afterwards, the neighbor discovered that the money was fake during the process of saving money, and was confiscated by the bank. Master Wang compensated the neighbor 100. May I ask how much Master Wang lost in total?
考考大家：这是一道可以测出一个人有没有商业头脑的数学题．王师傅是卖鱼的，一斤鱼进价45元，现亏本大甩卖，顾客35元买了一公斤，给了王师傅100元假钱，王师傅没零钱．于是找邻居换了100元．事后邻居存钱过程中发现钱是假的，被银行没收了，王师傅又赔了邻居100，请问王师傅一共亏了多少？
<gadget id="calculator">45 * 2</gadget>
<output>90</output>

<gadget id="calculator">100 - 35</gadget>
<output>65</output>

<gadget id="calculator">90 + 65 + 100</gadget>
<output>255</output>

<gadget id="calculator">255 - 100</gadget>
<output>155</output>

<result>155</result>