Answer:
66 2/3 % Markup
Explanation:
1) Subtract the two numbers.
2.07 - 0.69 = 1.38
2) Divide the difference of the subtraction problem by 2.07, the value of the marked up cards.
1.38/2.07 = 2/3
3) Because percent means divided by 100, multiply 2/3 (0.6666...) multiplied by 100 as a fraction because x/100 x 100 = x.
66 2/3 % Markup