The market demand function of a perfectly competitive market is Q=500-p, and the cost function of an individual company is C(q)=q^3-20q^2+110q. Suppose that the government imposes a tax of 10 per unit of transaction on companies. In the long-term equilibrium, find K-L when you indicate the number of companies as L and the market price as K. Find W1 - W2, W1 is when no tax is imposed, and W2 is when the government imposes a tax of 10 per unit of transaction on an enterprise.

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