Richard's strategy to change a percent to a decimal is to put the decimal point in front of the percent
8% = 0.8
80% = 0.80
800% = 0.800
Should 8%, 80%, and 800% all be represented as equivalent decimals?
If not, there is a flaw with Richard's strategy.
No, because converting from a percent to a decimal involves dividing by 100 or shifting the decimal place to the left twice.