I am thinking about the Covid-19 affect software industry (like Zoom app) in microeconomic situation. the Covid-19 lead demand on using this type of app increase. And following the microeconomic demand supply model. which means demand curve shift right to increase, then Quantity demand and Price will increase.But the fact is Zoom is free for use now. which means the price is decrease. And also, How this affect on Software industry? So, i am quiet confuse on this part!!!Could you show me in demand-supply model and using Microeconomic language explain clearly to help me understand it!! Thank you so much!