So percent means parts out of 100 so x%=x/100 lisa spent 67 and 25 what percent was price of skateboard
so percent of total price total price=skateboard+helmet=67+25=92 so total=92
then percent out of 100 67 out of 92=67/92 one way is to divide fully and get 0.728261/1 make denomentator 100 multiply by 100/100 72.8261/100=72.8261%