The black color is 20%.2 in decimal form and 1/5 in fraction form
The navy color is 25 %.25 in decimal and 1/4 in fraction form
The brown color is 35%.35 in decimal and 7/20 in fraction form
Other colors are 20 %.2 in decimal and 1/5 in fraction form
So by subtracting the black, navy and brown color from 100% one can be able to find other colors.