-49.12% is the change from 853 to 434
Calculation steps:
[( 434 - 853 ) ÷ 853] x 100 = -49.12%
Formula
Percentage change = [(434 - 853) / 853] x 100
Subtract the new number by the original number
434 - 853 = -419
-419 ÷ 853 = -0.4912075029308324
-0.4912075029308324 x 100 = -49.12%