In fairness, no it doesn't. You can't just do an apple for apple replacement like that, but Greenwood brings a hell of a lot more to the team in other ways than goal, such as mobility and movement, contributing to attacks, making space and creating chances for other attackers. Lukaku is a flat track bully and never once scored against a top-6 team. He was shite.
He might have been top scorer in the team while he was here, but I think he was expected to score at least twice as many goals as his record and transfer fee suggests, so by almost every account, he was an abysmal failure here. Thank God he is gone.