Find the original value (old).
Find the new value (new).
Subtract: difference = new − old.
Divide: ratio = difference ÷ old.
Convert to percent: percent increase = ratio × 100.
Final formula: ((new − old) ÷ old) × 100.
Find the original value (old).
Find the new value (new).
Subtract: difference = new − old.
Divide: ratio = difference ÷ old.
Convert to percent: percent increase = ratio × 100.
Final formula: ((new − old) ÷ old) × 100.