Squid-Algebra Problem

Mr Hedman is obsessed with Squidoo. He currently has three lenses. Harry Potter Fan Art is currently ranked #148. While Waiting for Harry Potter 7 is currently ranked #505 and Harry Potter Music is ranked #1618.

These numbers are good enough that Mr. Hedman is #95 on the Top 100 Lensmaster list. He wants to publish The Giant Squid AND stay on the Top 100 Lensmaster list.

What ranking does the new lens need so Mr. Hedman stays on the list? What other information is needed to answer this question?