When you figure out what y is, multiply it by 7, and then divide 7y ÷ 119. Use the decimal you get, multiply it by 100 and you have the percent.
and also The easiest way to do this type of problems is to use the formula:
is/of = %/100 and substitute into the equation the values associated with each part of the proportion.
119/7y = %/100
Now cross multiply:
119 * 100 = 7y%