-74.09% is the change from 849 to 220
Calculation steps:
[( 220 - 849 ) ÷ 849] x 100 = -74.09%
Formula
Percentage change = [(220 - 849) / 849] x 100
Subtract the new number by the original number
220 - 849 = -629
-629 ÷ 849 = -0.7408716136631331
-0.7408716136631331 x 100 = -74.09%