Feminist scholars highlight the fact that, worldwide, women earn only about as much as men for the same job as a blatant example of gender inequality.

I believe the answer is: 70%

The number come after accumulating the number of earning from each gender and divided it to the number of population that each gender has.
After the division, it's calculated that the median earning for men tend to be 23% higher compared to women's median earning

The correct answer is connotation.