-31.92% is the change from 849 to 578
Calculation steps:
[( 578 - 849 ) ÷ 849] x 100 = -31.92%
Formula
Percentage change = [(578 - 849) / 849] x 100
Subtract the new number by the original number
578 - 849 = -271
-271 ÷ 849 = -0.31919905771495877
-0.31919905771495877 x 100 = -31.92%