Answer:Percent error=29%
Explanation:
Percent error=(Estimated value-Actual value/ Actual value) × 100
Estimated value = amount of cookies Payton thought the mix could make = 36
Actual Value= Amount of cookies made= 28
Percent error= (36- 28)/ 28 x 100
=8/28 x 100
=0.2857 x 100
=28.57 rounded to 29%