-70.44% is the change from 849 to 251
Calculation steps:
[( 251 - 849 ) ÷ 849] x 100 = -70.44%
Formula
Percentage change = [(251 - 849) / 849] x 100
Subtract the new number by the original number
251 - 849 = -598
-598 ÷ 849 = -0.7043580683156655
-0.7043580683156655 x 100 = -70.44%