I'm looking for a Script or Utility that will handle Proportional scaling similar to the following description:
The proportional scale is a tool that calculates the new dimension of a piece of scaled artwork and the percentage of reduction or enlargement. It is composed of two disks joined at the center with a fastener that allows the disks to rotate. The disks are approximately 6 inches in diameter and made of a white laminate lettered in black. Figure 1-29 shows a proportional scale.