-34.12% is the change from 340 to 224
Calculation steps:
[( 224 - 340 ) ÷ 340] x 100 = -34.12%
Formula
Percentage change = [(224 - 340) / 340] x 100
Subtract the new number by the original number
224 - 340 = -116
-116 ÷ 340 = -0.3411764705882353
-0.3411764705882353 x 100 = -34.12%