Coras kitten weighs 1,200 grams. If he weighed 550 grams at the last visit to the veterans office, what percent is the increase in the kitten's weight rounded to the nearest whole number?

First, find the different of the two weights

d = 1,200 - 550

d = 650

The different of the weights is 650

Second, to find the percentage, we should compare the difference to the former weight. So we compare 650 to 1,200, then multiply it to 100%

percentage = 650/1,200 * 100%

percentage = (65,000/1,200) %

percentage = 51.17%

percentage = 51%

The percent of increase is 51%