Good and Bad Writing -- Exercises in Evaluating Writing Samples
Mechanics -- Money
When only briefly mentioning U.S. currency, the writer should spell it out.
He was paid fifteen dollars an hour.
When referring to currency more often, the writer should use numerals and the symbol $. Drop the decimal and following zeros unless discussing specific amounts.
The cost of bread rose from $1 to $2 in six months during the recession.
The cost of bread rose from $1.25 to $1.75 in six months during the recession.
Large round numbers should be expressed in both numerals and words.
The war cost $230 million.