Answer:
20%
Step-by-step explanation:
First: work out the difference (decrease) between the two numbers you are comparing.
Decrease = Original Number - New Number
350-280= 70
Then: divide decrease by original number & multiply the answer by 100.
70/350= .2
.2*100= 20
Percentage Reduced = 20%
% Decrease = Decrease ÷ Original Number × 100