Is the total rate of return correct?

5) Total rate of return of portfolio Apple: (151.28 - 148.60) x 221 / 148.60 x 221 *100 = 1.80% Microsoft: (336.06 - 299.72) x 15 / 299.72 x 15 * 100 = 12.12% Netflix: 681.17 - 558.92) x 37 / 558.92 x 37 * 100 = 21.87% Airbnb: (201.62 - 154.18) x 114 / 154.18 x 114 * 100 = 30.77% Portfolio: Ending price = Apple: 151.28; Microsoft 336.06; Netflix 681.17; Airbnb 201.62 Name | Initial Price Shares | Percentage of $100,128 invested Apple: 148.60 (221 Shares) = (32.85%) (money invested= $32,840) Microsoft 299.72 (15 Shares) = (28.39%) (money invested= $28,474) Netflix 558.92 (37 Shares) = (21.18) (money invested $21,238) Airbnb 154.18 (114 Shares) = (17.58%) (money invested $17,576)