-32.85% is the change from 344 to 231
Calculation steps:
[( 231 - 344 ) ÷ 344] x 100 = -32.85%
Formula
Percentage change = [(231 - 344) / 344] x 100
Subtract the new number by the original number
231 - 344 = -113
-113 ÷ 344 = -0.32848837209302323
-0.32848837209302323 x 100 = -32.85%