Do you include employer's match when counting 15% retirement savings?

I know it's a bit of a hair splitting, but the common recommendation is to contribute 15% of gross income to your retirement, so I'm just wondering in your head when you are thinking whether you have or have not met that goal do you just count your contributions or include the match or maybe even gross it up?

so like if you put 10% and employer matches 5% are you done, are you striving to add 5% more or are you counting it as 15%/105% and aim to add another 1%?

also how much would you need to have saved at 25/30/35/40/45 years old to consider that 15% is sufficient and at what point do you go into catch up mode?