Subtract the original value from the new value: `difference = new − original`
Divide the difference by the original value: `ratio = difference / original`
Convert to a percentage: `percentage_increase = ratio × 100`
Formula: `((new − original) / original) × 100`
Example placeholders: `original = ___`, `new = ___`, `percentage_increase = ((new − original) / original) × 100`