The Everton forward doesn't think the club paid too much for him in the summer.
The Blues broke their record transfer fee to sign the Belgian from Chelsea in the summer, following his successful loan spell last season.
He enjoyed an impressive season with the Toffees in 2013/14, scoring 15 goals in 29 Premier League starts, with that form likely to have convinced manager Roberto Martinez to splash the cash on his signature.
However, this season has not been as prolific, with just seven league goals netted in 25 appearances. The striker is adamant that the club didn’t pay too much for him, though, instead blaming poor preparation in the summer as the reason for his indifferent form.
“After the World Cup I had vacation, but negotiations dragged on my transfer,” said Lukaku.
“The season was over, but I did not know where I was going to play. Uncertainty. Wait, wait, wait. And then I was sure, remained only one week before the competition starts. Some said I was suffering from pressure after my transfer to Chelsea. But I just did not have good preparation.”
The striker has recently come in for criticism from the Everton fan base after admitting in an interview with the Sun that he wanted to move to a 'top club' in the summer.
His indifferent form has also came in for denigration, with him continuing to struggle against former club Chelsea during the week, where goalkeeper Petr Cech denied him on two separate occasions, one a point-blank stop that the Belgian really should have converted.
Despite that, manager Martinez has backed the young forward and Lukaku is adamant that the huge price the club paid for him has nothing to do with his performances this year, instead saying it wasn’t enough.
“So no, because transfer fee of 35 million euros was not enough to me,” he added.
“If I take a step forward, I'll be worth even more. You will not hear me say that 35 million is so much money. I will fully show that I'm worth that amount. I will do anything to increase my value”