Respuesta :
percent increase=increase/original
increase=48-12=36
36/12=3
percent measn parts out of 100
x%=x/100
3=x%
3=x/100
times 100 both sides
300=x
answer is 300%
increase=48-12=36
36/12=3
percent measn parts out of 100
x%=x/100
3=x%
3=x/100
times 100 both sides
300=x
answer is 300%