To write 2/300 as a percent have to remember that 1 equal 100% and that what you need to do is just to multiply the number by 100 and add at the end symbol % .
2/300 * 100 = 0.0066666666666667 * 100 = 0.66666666666667%
And finally we have:
2/300 as a percent equals 0.66666666666667%