-34.29% is the change from 347 to 228
Calculation steps:
[( 228 - 347 ) ÷ 347] x 100 = -34.29%
Formula
Percentage change = [(228 - 347) / 347] x 100
Subtract the new number by the original number
228 - 347 = -119
-119 ÷ 347 = -0.34293948126801155
-0.34293948126801155 x 100 = -34.29%