If you specify a negative scale, Oracle Database rounds the actual data to the specified number of places to the left of the decimal point. For example, specifying (7,-2) means Oracle Database rounds to the nearest hundredths, as shown in Table 26-1.
McCann (2000) found that households in communities with good transit use save an average of about $3,000 annually on transportation costs. Litman (2004) found annual transportation cost savings of about $1,300 per household in cities with well-established rail transit systems compared with cities that lack rail.
as the cost of gas has increased nearly $1 per gallon. Washington, DC â Individuals who ride public transportation can save on average $9,242 annually based on the January 11, 2010 national average gas price and the national unreserved monthly parking rate.