-71.43% is the change from 847 to 242
Calculation steps:
[( 242 - 847 ) ÷ 847] x 100 = -71.43%
Formula
Percentage change = [(242 - 847) / 847] x 100
Subtract the new number by the original number
242 - 847 = -605
-605 ÷ 847 = -0.7142857142857143
-0.7142857142857143 x 100 = -71.43%