aws price calculator | Python Fiddle

#input data 
num_instances = 8.
num_users = 100000.

#prices
_instance_price_per_hour = 0.6
_io_ops_price_per_hour = 0.1
_network_io_price_per_hour = 1.08
_gb_price_per_month = 0.1

# model (etalon) values
__model_num_instances = 8.
__model_num_users = 500000.
__model_data_size_gb = 20.
__model_calc_hours = 4.
 
#util
__replication_factor = 3.

def model_data_size_gb(num_users):
	return __model_data_size_gb * num_users / __model_num_users

def model_calc_hours(num_instances, num_users):
	return float(__model_calc_hours * num_instances) / float(__model_num_instances) * num_users / float(__model_num_users)
	
def model_io_ops_price_per_hour(num_instances):
	return _io_ops_price_per_hour * num_instances / __model_num_instances

def model_network_io_price_per_hour(num_instances):
	return _network_io_price_per_hour * num_instances / __model_num_instances 
	
	
def model_calc_price(num_instances, num_users):
	calc_hours = model_calc_hours(num_instances, num_users)
	instances_prices = calc_hours * num_instances * _instance_price_per_hour
	io_ops_price = model_io_ops_price_per_hour(num_instances) * calc_hours
	network_io_price = model_network_io_price_per_hour(num_instances) * calc_hours
	return instances_prices + io_ops_price + network_io_price
	
	
def monthly_price(num_users):
	return _gb_price_per_month * __replication_factor * model_data_size_gb(num_users)

print "Monthly support price: %4.3f $" % monthly_price(num_users)
print "Single calculation duration (hours):  %4.3f hours" % model_calc_hours(num_instances, num_users)
print "Single calculation price:  %4.3f $" % model_calc_price(num_instances, num_users)

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