-70.08% is the change from 849 to 254
Calculation steps:
[( 254 - 849 ) ÷ 849] x 100 = -70.08%
Formula
Percentage change = [(254 - 849) / 849] x 100
Subtract the new number by the original number
254 - 849 = -595
-595 ÷ 849 = -0.7008244994110718
-0.7008244994110718 x 100 = -70.08%