what was the outcome of reconstruction after 1877?

It's quite obvious that it was abandoned after that point. As part of the sleazy political deal that settled the presidential election 1876, the incoming Hayes administration promised to withdraw Federal troops from the south. Without the troops, there was nobody to enforce any of the reconstruction-era laws, and the southern whites soon became free to return to oppressing the blacks and denying them their rights.

Not very good, the price of wool pants went up 33% in one year