-33.53% is the change from 340 to 226
Calculation steps:
[( 226 - 340 ) ÷ 340] x 100 = -33.53%
Formula
Percentage change = [(226 - 340) / 340] x 100
Subtract the new number by the original number
226 - 340 = -114
-114 ÷ 340 = -0.3352941176470588
-0.3352941176470588 x 100 = -33.53%