-70.55% is the change from 849 to 250
Calculation steps:
[( 250 - 849 ) ÷ 849] x 100 = -70.55%
Formula
Percentage change = [(250 - 849) / 849] x 100
Subtract the new number by the original number
250 - 849 = -599
-599 ÷ 849 = -0.7055359246171967
-0.7055359246171967 x 100 = -70.55%