Stream $1$: Payments of $$1800$ made $150$ days ago and $$2800$ made $90$ days ago.

Stream $2$: Payments of $$1600$ due $30$ days from now, $$1200$ due $75$ days from now, and $$2000$ due $120$ days from now.

If money earns $7\mathrm{.}5\%,$ calculate and compare the economic value today of the payment streams given above $($Do not round

intermediate calculations and round your final answers to $2$ decimal places.$)$:

Stream $1$

$

Stream $2$

$

The economic value of Stream $2$ is

higher than

the economic value of Stream $1.$