how do you convert 12.55 to percent? i get 1,255% is that correct? or should it be 125.5%?

If the 12.55 is a decimal, then .1255 is the percent. Per Cent means "per 100".

the math problem asked me to find the percent increase of the population in africa from 1950 to 2000. the answer i got was 12.55, now how do i write this as a percent; is it 1255% or 125.5%?

To convert 12.55 to a percent, you need to multiply it by 100. This is because "percent" means "per 100." So, multiply 12.55 by 100:

12.55 * 100 = 1255

Therefore, 12.55 is equivalent to 1255%.

Hence, the correct answer is 1255%, not 125.5%.