Calculating 'cash flows over the life'

Michael$$s Patisserie Company $($MICH$)$ is proposing to replace its old baking equipment with new equipment. Baker$$s Delight will purchase the old baking equipment immediately for $$87,000.$

The new baking equipment costs $$250,000$ immediately. The new baking equipment is expected to increase MICH$$s total yearly sales by $$50,000$ to $$425,000.$

MICH will sell new shares to partially fund the purchase of the new baking equipment, raising a total of $$90,000.$

The new baking equipment is more efficient than the old equipment and is expected to reduce MICH's annual operating costs to $$200,000$ from $$280,000.$

According to the tax office, the new baking equipment has an effective life of $20$ years. Assume the company tax rate is $30\%.$

The old baking equipment incurs depreciation of $$12,000$ per annum, and has $20$ years until it is fully depreciated. For internal management reporting, the new baking equipment will be depreciated using a $12-$year useful life.

What are the 'cash flows over the life'?