The table below describes labor supply and labor demand schedules. Labor supply Labor demand Wage 1,000 workers $15 400 workers 500 workers 900 workers $16 600 workers 800 workers $17 700 workers 700 workers $18 800 workers 600 workers $19 900 workers 500 workers $20 1,000 workers 400 workers $21 Find the equilibrium amount of employment in this market