Calchy.
Math - percentage change

What is the percentage change from 100 to 120?

Answer
+20.00
%
((120 − 100) ÷ 100) × 100 = 20.00%
How we got there
  1. 01Difference: 120 − 100 = 20.00
  2. 02Divide by start: 20.00 ÷ 100 = 0.2000
  3. 03Convert to %: × 100 = 20.00% (increase)
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