LEGO Harry Potter Years 5-7

As the description says, you will hit this upon hitting 50% game completion. To check simply pause the game in while not in a mission level and all your stats will show. This stat is at the top.

To increase your percentage:
Complete all story modes
Collect Gold bricks
Collect Red bricks
Rescue students in peril
Collect Character tokens and buy them at the shop
Buy spells at the Weasley shop
True Wizard in every level

I myself was at 48% after completing the main storyline. Although I collected here and there along the way.

Here's a link to a guide I made that details the location of everything needed for this achievement. Obviously, you will get this achievement on the way to getting 100%.

http://www.gamefaqs.com/xbox360/631934-lego-harry-potter-yea...

In order to obtain 100%, you need to do the following:

Obtain all 200 Gold Bricks
- 24 for completing all story levels
- 24 for getting True Wizard in all story levels
- 24 for finding all 4 Hogwarts crest pieces in every level
- 14 for completing all the lessons during the story
- 60 for finding all 60 Students In Peril
- 16 can be purchased from Borgin and Bukes
- 1 for completing the bonus level in Borgin and Bukes
- 37 can be found in the Hogwarts/Diagon Alley/Wilderness areas

Collect and buy all 20 Red Bricks

Collect and buy all 200 characters
- 72 in story levels (3 per level)
- 128 in the Hogwarts/Diagon Alley/Wilderness areas