4 Kirana Ltd manufactures sold DIY shelf for $300. Production cost are $100 variable cost and $50 fixed. Kirana is considering building the table in store and selling it for $350. Variable cost to assemble are $30 and fixed costs are $10. What is the Net Income Increase (Decrease) if Kirana choose to sell assembled shelf? Sell Process Further Net Income Increase (Decrease) (make the answer bold)