Identify Formula: Identify the formula to calculate the percentage.The formula to find out what percent one number is of another is: (Part/Whole)×100=Percentage
Plug Numbers: Plug the given numbers into the formula.In this case, the "part" is 348 and the "whole" is 400. So, we have (400348)×100.
Perform Division: Perform the division 348 divided by 400. 348÷400=0.87
Multiply Result: Multiply the result by 100 to find the percentage.0.87×100=87