When using a percentage in a headline or sub-headline do you use a percentage such as 50% or does using an uneven percentage such as 61% make it sound more believable?

You should never make up a percentage or number to make your copy sound better. While it may look more interesting initially, it’s just not worth the legal headache in the long run. Stick to the facts!

That said, if the correct percentage is 61%, using the real statistic instead of rounding off is more compelling.