-50.88% is the change from 853 to 419
Calculation steps:
[( 419 - 853 ) ÷ 853] x 100 = -50.88%
Formula
Percentage change = [(419 - 853) / 853] x 100
Subtract the new number by the original number
419 - 853 = -434
-434 ÷ 853 = -0.5087924970691676
-0.5087924970691676 x 100 = -50.88%