Hello, could you please help me solve the following question?

Sparky (mass 4.00 kg) drops from a height of 1.50 m onto a trampoline. He hits the trampoline at a speed of 5.00 m/s and bounces up to a height of 1.00 m. Assuming the air resistance is constant throughout the problem, calculate the energy lost to the trampoline.

The answer is 4.90J.

Please use physic energy equations.