I'm not sure if you can unpretty a currency metric. However, as a workaround, you could make a business metric similar to below that takes the value of cost amortised and saves it as a number as opposed to currency. That could then be used in your reporting query without rounding.
{
"name": "Cost Amortised(unpretty)",
"kind": "BUSINESS_METRIC",
"numberFormat": "number",
"defaultValueExpression": "METRIC['total_amortized_cost']",
"statements": [{
"matchExpression": "DIMENSION['account_name'] != 'abcdef'",
"valueExpression": "METRIC['total_amortized_cost']"
}]
}
Business metric docs: https://help.apptio.com/en-us/cloudability/api/v3/business_mappings_endpoint.htm#business-metrics-beta
#Cloudability