If something starts out costing $500 and then is marked down by 25% on each of three separate occasions what is the final price

500 * 25%

= 500*1/4

=125 1st time marked down.

Then, 500-125 = 375

375 * 25%

=375*1/4

=93.75 2nd time marked down.

Then, 375-93.75 = 281.25

281.25 * 25%

=281.25*1/4

=70.31 3rd time marked down.

Then, 281.25 - 70.31 = $210.94

The final price is $21.94