Calchy.
Math - percentage change

What is the percentage change from 250 to 200?

Answer
-20.00
%
((200 − 250) ÷ 250) × 100 = -20.00%
How we got there
  1. 01Difference: 200 − 250 = -50.00
  2. 02Divide by start: -50.00 ÷ 250 = -0.2000
  3. 03Convert to %: × 100 = -20.00% (decrease)
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