51 services carry this tag in their source record. Tags come from the provider, not from us — a tag is a claim about what the service does, not proof that it does it well.
Validate a decimal: tests the value against a well-known decimal pattern and returns valid true/false, the pattern used (so you can reuse it), and, when it fails, the first character position that breaks the rule. Format...
Validate a percentage: tests the value against a well-known percentage pattern and returns valid true/false, the pattern used (so you can reuse it), and, when it fails, the first character position that breaks the rule....
Validate a currency amount: tests the value against a well-known currency amount pattern and returns valid true/false, the pattern used (so you can reuse it), and, when it fails, the first character position that breaks...