Question

How do I use 1% or 10% to estimate the percent of each number?

Answer 1

Using what, google, a calculator, interpreter?

Answer 2

For 1% and 10% you just move all the numbers down, so 0310 (Three hundred and Ten) becomes 0031 (Thirty One), that is 10%, 1% would be 0003.1 (Three point One)