-71.5% is the change from 849 to 242
Calculation steps:
[( 242 - 849 ) ÷ 849] x 100 = -71.5%
Formula
Percentage change = [(242 - 849) / 849] x 100
Subtract the new number by the original number
242 - 849 = -607
-607 ÷ 849 = -0.7149587750294464
-0.7149587750294464 x 100 = -71.5%