Answer:
40 percent of 155 is 62
40%
Explanation:
The equation for "what percent of x is y" can be written as:

where
is the part and
is the whole.
This formula calculates the percentage of y with respect to x. Multiplying the quotient of y/x by 100% converts the fraction to a percentage.
In this example we have "What percent of 155 is 62?"
So



40%