Practical significance refers to the magnitude of the difference, which is known as the effect size. Results are practically significant when the difference is large enough to be meaningful in real life.

What percent is practically significant?

A difference of 30% (65% for women minus 35% for men) may be practically significant (i.e., warrant a decision to focus more resources in one direction) but if the difference isn't statistically significant (that depends on sample size) then you can't be sure the difference you see (30%) is real, so you either need to ...

What is statistically significant and practically significant?

While statistical significance shows that an effect exists in a study, practical significance shows that the effect is large enough to be meaningful in the real world. Statistical significance is denoted by p-values whereas practical significance is represented by effect sizes.