Michael is an Internet service provider. On December $31,2015,$ he bought an existing business with servers and a building worth $$200,000.$ During $2016,$ he bought new servers for $$300,000$ The market value of his older servers fell by $$150,000$ Michael's gross investment during $2016$ was s Michael's depreciation during $2016$ was $ Michael's net investment during $2016$ was $ Michael's capital at the end of $2016$ was $