Karen needs to make a total of 70 deliveries this week. so far she has completed 28 of them. what percentage of her total deliveries has karen completed?

To determine the percentage of deliveries Karen has completed, divide the number of deliveries completed by the total deliveries to be made. Then, multiply the quotient by 100%. This is shown below,
                            (28 / 70) x 100% = 40%
Therefore, Karen has completed 40% of her deliveries.