Do Different Brands Of Orange Juice Contain Different Levels Of Vitamin C?

Yes, the amount differs by types and brands. The Langers Pure Conc. With an average
number of drops of 2.5 has the highest amount of Vitamin C followed by the Freshly Squeezed orange. Florida's Natural and Tropicana have an average of 11.7 and 11.0 while Sunny D and Minute Maid
have 10 and 9.7 drops.

I don't know I was trying to do this for my science project but I can't do it. What the heck