On: M4 Geekbench and Comparison to M3 – ST: 3767 – MT: 14677

Are they using math correctly? If they talk about the difference they should say 25% instead of 125%, am I missing something?

It’s not so much the difference as saying exactly how one number compares to the other. For example, given 150 and 100, you could say that 150 is either 150% of 100 or that it is 50% bigger than 100.