-14.41% is the change from 340 to 291
Calculation steps:
[( 291 - 340 ) ÷ 340] x 100 = -14.41%
Formula
Percentage change = [(291 - 340) / 340] x 100
Subtract the new number by the original number
291 - 340 = -49
-49 ÷ 340 = -0.14411764705882352
-0.14411764705882352 x 100 = -14.41%