original price – discounted price = X

X / original price = solution

So, using the numbers you provided we can simply plug them in place of the variables:

$300 (minus) $23 = $277

$277 (divided by) $300 = .9233333

To turn this number into a percentage just move the decimal two places to the right.

92.33333%

ENJOY ALL YOUR SAVINGS!!!!

x% of y = z

so if the shirt is initially for 300$

marked at 23$

difference is 300$-23$=277$

so the percentage will be

x% 300=277

or x/100=277/300

or x= 277*100/300

or x = 277/3

or x = 92.33%

x*100

assuming you were asking what percent was 23 out of 300

(300-23)/300=x

x*100

assuming you are asking what percent was marked down

its 277 dollars off…

277 / 300 = .923333333….