(21/x) (12/100)= 175
21 = (.12)(x) 21 / .12 = x Answer: 175
12% of 175 is 21.
It is: 12% of 175 = 21
(21/175) x 100 = 12%
an increase of 75%
75% increase
21/2 = 250%
(1200/100)*12= 144
50% = 0.50 = 1/21/2 of 12 = 6
(7 percent of 21) - (4 percent of 21) = 0.63
21 percent is 21% or 21/100.