-29.45% is the change from 343 to 242
Calculation steps:
[( 242 - 343 ) ÷ 343] x 100 = -29.45%
Formula
Percentage change = [(242 - 343) / 343] x 100
Subtract the new number by the original number
242 - 343 = -101
-101 ÷ 343 = -0.2944606413994169
-0.2944606413994169 x 100 = -29.45%