-21.64% is the change from 342 to 268
Calculation steps:
[( 268 - 342 ) ÷ 342] x 100 = -21.64%
Formula
Percentage change = [(268 - 342) / 342] x 100
Subtract the new number by the original number
268 - 342 = -74
-74 ÷ 342 = -0.21637426900584794
-0.21637426900584794 x 100 = -21.64%