A tennis racket normally costs $70. The tennis racket is on sale for 70% off. sales price?

Tennis racket's normal price = 70

If it's 70% chiper now, you can either divide by 100 and times 70 to work out change in price after the sale.

Or you can just times 0.7 to work out change in price after the sale.

1st method: (70 / 100) x 70 = 49

                   So the sales price is 70 - 49 = 21.

                   The price of tennis racket after the sale is 21 dollars.

2nd method: 70 x 0.7 = 49

                    Rest is same with 1st method.

Hope it helped! 

Times $70 by .3 

Both answers are correct :)