Two whole numbers will end up like this: 8x8=64,but multiplying a whole and a decimal will end up like this 8x8.1=64.1 or 8x8=8 to the second power. this should be sufficient information.
1 yard=3 feet 2 feet is what percent of 3 feet? 2=x% times 3 2=x/100 times 3 2=3x/100 multiply both sides by 100 200=3x divide both sides by 3 66.6666666=x answer is 66.66666%