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<p>if I tell you that I’m selling services which are for $100 but provide you for $50 but to another person endup providing the same service for $0 then what do you think about the actual value of the service.</p>
<p>If I’ve not provided the service for $0 to another person I would have provided the service to you for $25.</p>
<p>Which in turns prove that I charged you for providing a $0 service to another person.</p>
<p>It is a very simple math and I don’t know why it is so difficult to comprehend.</p>