8% of 31.00 = 31.00*8/100 = 2.48
217030% off of 3100= 30% less applied to 3100= 3100 - (30% * 3100)= 3100 - (0.30 * 3100)= 3100 - 930= 2170
The first key thing to note is that a percent is that number over 100. In this instance, 8% can be rewritten as 8/100. The second thing to note is that "of" in mathematics means "multiplied by." For instance 2 groups of 8 means 2x8. Thus the question can be rewritten as 8/100 x 3100. If you do this calculation you get 248. Thus 8% of 3100 is 248.
% increase = 100*(3100/3000 - 1) = 3.33..%
About 59%.
0.0026
2% of 155000 = 2% * 155000 = 0.02 * 155000 = 3100
31005% of 62000= 5% * 62000= 0.05 * 62000= 3100
3% of 31 = 31*3/100 = 3/3100
3100
30 percent means 30 out of each 100. In this case it will be written as30 = 3100 10
3100
3100 is an integer which can be expressed as a fraction as 3100/1.