This building block of 1% can be multiplied to find other percentages. For example, to find 2% multiply 1% by 2. To find 3%, multiply 1% by 3. To find 4%, multiply 1% by 4 Image caption ...

"The 4% rule first became popular in the mid-'90s ... With a 401(k), you can set up your account so a percentage of your paycheck is automatically invested for you each pay period.