I feel like I've changed more than this; I think the title should actually be "how much have the situations in your life changed" rather than "how much have YOU changed".
You've Changed 56% in 10 Years
You've done a good job changing with the times, but deep down, you're still the same person.
You're clothes, job, and friends may have changed some - but it hasn't changed you.
How Much Have You Changed in 10 Years?