Below is the standard formula for reducing or enlarging.

Download my enlargement and reduction charts to find the percentages you need at a glance.

**Enlarging:**

- What is the original block size? e.g. 6 inches
- What size do you want the new block to be? e.g. 8 inches
- Divide the new size by the original size, e.g. 8 ÷ 6 = 1.33.
- Move the decimal point two steps to the right to get your percentage = 133%.
- Enter 133% into the copy machine to enlarge your 6-inch block to an 8-inch block.

**Reducing:**

- Do the opposite of above.
- Divide the small size (e.g. 6") by the large size (e.g. 8") to get your reduction percentage, e.g. 6 ÷ 8 = 0.75 = 75% reduction.

**2. Proportional Scale**

Proportional Scales may look a bit intimidating at first but they're easy to use. You can buy a Proportional Scale especially for quilters

**.**__HERE__**How to use a proportional scale:**

- On the bottom wheel, find the original size of your block (e.g. 6"), [Fig 1].
- Line up this number with the new size (e.g. 8") on the top wheel, [Fig 1].
- In the window, you'll see the percentage of the reduction or enlargement you need to resize your block, [Fig 2].

**Download PDF**.

- Find the original measurement on the left side of the chart.
- Go along that row until you get to the measurement you want on the top row.
- The number in the intersecting box is the percentage you'll need to reduce or enlarge your block.

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