Find the present values of the following cash flow streams at a $12\%$ discount rate. Do not round intermediate calculations. Round your answers to the nearest cent.

$012345$

Stream A $$0$ $$150$ $$450$ $$450$ $$450$ $$250$

Stream B $$0$ $$250$ $$450$ $$450$ $$450$ $$150$

Stream A: $

Stream B: $

What are the PVs of the streams at a $0\%$ discount rate? Round your answers to the nearest dollar.

Stream A: $

Stream B: $