Calculating the pricing for an Amazon Machine Image (AMI) based on its storage location and region involves looking up the pricing information from AWS's official pricing pages or using the AWS Price List API. Here's a simplified shell script that demonstrates how to calculate the pricing based on region for an AMI:

#!/bin/bash

# Define the region and AMI storage location
REGION="us-east-1" # Replace with your desired AWS region
AMI_STORAGE_LOCATION="standard" # Replace with "standard" or "faster" depending on your storage class

# Function to calculate AMI pricing
calculate_ami_pricing() {
  local region="$1"
  local storage_location="$2"

  # Determine the storage cost based on the storage class
  case "$storage_location" in
    "standard")
      storage_cost_per_gb=0.1
      ;;
    "faster")
      storage_cost_per_gb=0.2
      ;;
    *)
      echo "Invalid storage location specified."
      exit 1
      ;;
  esac

  # Query the AWS Pricing API (this is a simplified example)
  # In a production script, you should fetch the pricing data programmatically
  # using the AWS Price List API or use a dedicated AWS pricing library

  # Example: Fetch the pricing information using AWS Price List API
  # pricing_info=$(aws pricing get-products --region "$region" --service-code AmazonEC2 --filter "termType=OnDemand,productFamily=Compute Instance,location=$region")

  # Calculate the pricing based on the fetched data
  # Replace this with actual calculations based on pricing data
  total_cost=10 # Replace with your actual pricing calculation

  # Print the result
  echo "Estimated monthly cost for the AMI in region $region: \$$total_cost"
}

# Calculate and display the pricing
calculate_ami_pricing "$REGION" "$AMI_STORAGE_LOCATION"

Please note that this script is a simplified example, and it doesn't make actual requests to the AWS Pricing API or use a dedicated AWS pricing library. To accurately calculate the pricing based on a specific AMI, you should consider the following steps:
1. Fetch AWS pricing data using the AWS Price List API or a dedicated AWS pricing library.
2. Extract the relevant pricing information for the specific AMI storage class and region.
3. Calculate the pricing based on the pricing data, considering factors such as storage class, storage size, and region.

The pricing information is subject to change, so you should ensure that your pricing data is up to date. Additionally, AWS provides pricing calculators and documentation to help with cost estimation based on various factors, which can be a useful resource for more accurate pricing calculations.