To find out what percent 40 is of 1,000, we can use the formula:
Percentage = (Part / Whole) * 100
In this case, 40 is the part and 1,000 is the whole.
Percentage = (40 / 1,000) * 100
Percentage = 0.04 * 100
Percentage = 4%
Therefore, 40 is 4% of 1,000.