-28.82% is the change from 340 to 242
Calculation steps:
[( 242 - 340 ) ÷ 340] x 100 = -28.82%
Formula
Percentage change = [(242 - 340) / 340] x 100
Subtract the new number by the original number
242 - 340 = -98
-98 ÷ 340 = -0.28823529411764703
-0.28823529411764703 x 100 = -28.82%