-50.65% is the change from 849 to 419
Calculation steps:
[( 419 - 849 ) ÷ 849] x 100 = -50.65%
Formula
Percentage change = [(419 - 849) / 849] x 100
Subtract the new number by the original number
419 - 849 = -430
-430 ÷ 849 = -0.5064782096584217
-0.5064782096584217 x 100 = -50.65%