-97.07% is the change from 409 to 12
Calculation steps:
[( 12 - 409 ) ÷ 409] x 100 = -97.07%
Formula
Percentage change = [(12 - 409) / 409] x 100
Subtract the new number by the original number
12 - 409 = -397
-397 ÷ 409 = -0.9706601466992665
-0.9706601466992665 x 100 = -97.07%