Astore sold 650 bicycles last year. this year the store sold 572 bicycles. what is the percent decrease in the number of bicycles sold from last year to this year?

Percent decrase=decrase/original times 100
decrase=650-572=78

percent decrease=78/650 times 100=0.12 times 100=12

answe is 12%

the law of definite proportions states samples of a compound will always contain the same proportion of elements by mass. in other words, a given compound will always contain the same elements in the same proportions by mass.the law of multiple proportions states when two elements combine with each other to form more than one compound, then the weights of one element that combine with a fixed weight of the other are in a ratio of small whole numbers.