In 2014, Robertson held a cap figure of $570,000. In 2015, he will hold a cap figure of $2,356,000, an increase of 313% in his year-to-year cap figures. Robertson saw the jump when the Browns placed a second-round tender on the restricted free agent, which he signed about a month ago.
The numbers and percentage increase will be exactly the same for Browns FS Tashaun Gipson if he signs his second-round tender. At least two safeties would be ahead of Gipson in terms of a percentage increase, with the highest being veteran S Mike Adams (388% increase).
The largest percentage increase goes to TE Julius Thomas at 1290%, who had a cap hit of $741,000 with the Broncos in 2014 and now a $10.3 million cap hit with the Jaguars in 2015. I think they overpaid just a tad for him.