Yes, "Hive Power" is just more friendly name for "VESTS" that lets you easily figure out how much HIVE would your VESTS would be worth in HIVE if powered down (and price wouldn't change).
You currently have 133.878 HP which is currently equal to 248,343.679773 VESTS (a.k.a. vesting shares)

Thing is, that even if you don't change your VESTS balance it will be a little more HIVE in time.