-12.94% is the change from 340 to 296
Calculation steps:
[( 296 - 340 ) ÷ 340] x 100 = -12.94%
Formula
Percentage change = [(296 - 340) / 340] x 100
Subtract the new number by the original number
296 - 340 = -44
-44 ÷ 340 = -0.12941176470588237
-0.12941176470588237 x 100 = -12.94%