-54.05% is the change from 740 to 340
Calculation steps:
[( 340 - 740 ) ÷ 740] x 100 = -54.05%
Formula
Percentage change = [(340 - 740) / 740] x 100
Subtract the new number by the original number
340 - 740 = -400
-400 ÷ 740 = -0.5405405405405406
-0.5405405405405406 x 100 = -54.05%