I need help please.

9.The owner of a computer store received a shipment of computers at cost of $319.85 each. If he sells the computes for $412.99 each, what is the percent of markup? Round to the nearest whole percent.
23%
29%
77% ****???
79%

3 answers

412.99 / 319.85 = 1.2912

1.2912 * 100 = 129.12 %

129.12 % - 100 % = 29.12 %

29 %

To the nearest whole percent.
My misprint.

1.2912 * 100 % = 129.12 %
Thank you!