171.47% is the change from 340 to 923
Calculation steps:
[( 923 - 340 ) ÷ 340] x 100 = 171.47%
Formula
Percentage change = [(923 - 340) / 340] x 100
Subtract the new number by the original number
923 - 340 = 583
583 ÷ 340 = 1.714705882352941
1.714705882352941 x 100 = 171.47%