Create a simple helper function in cartHelper.js that calculates the NZ standard GST amount based on the combined product price. The function should output both the total price (with gst), and the standalone GST amount which can then be called and used in the cart and payment components.
client/
├─ subcomponent/
│ ├─ Cart/
│ │ ├─ cartHelper.js <-- In here
Create a simple helper function in cartHelper.js that calculates the NZ standard GST amount based on the combined product price. The function should output both the total price (with gst), and the standalone GST amount which can then be called and used in the cart and payment components.