text: how do i get a  percent in a calculator? need the percent out of 102 and 180. divide by 100.  so 102% is equal to 1.02 and 180% is equal to 1.80  or if you need the percent of 102 in 180, you just divide and multiply by 100.  102 / 180 = 0.566666667 0.566666667 * 100 = 56.6667%  so 102 is 56.6667% of 180.