Well done you've pointed out the obvious, 50% of 24 is 12 add 12 to 24 it's 36, am I missing the joke?

agree — the math is correct.. I may be making a wild assumption but the genius that submitted the pic maybe figured 50% more than 24 should be 48?

Come on Chive, we quickly need an ironic 'Motivational' to humiliate this piss-takers horrendous mathematics…

Actually the maths is wrong. 50% more than 24 is 24.5.
50% of 24 more than 24 is 36.

Even my hillbilly figurin' says that's right.