SOLUTIONS
Explanation:
% Increase = Increase / Original Number × 100. This gives you the total percentage change, or increase. To calculate a percentage decrease first, work out the difference (decrease) between the two numbers you are comparing. Next, divide the decrease by the original number and multiply the answer by 100.
New price = $373.98
Original price = $271.00
Increase = 373.98 - 271.00 = $102.98
Therefore the percentage increase of the value of Tessa's stock = 38%