-24.93% is the change from 341 to 256
Calculation steps:
[( 256 - 341 ) ÷ 341] x 100 = -24.93%
Formula
Percentage change = [(256 - 341) / 341] x 100
Subtract the new number by the original number
256 - 341 = -85
-85 ÷ 341 = -0.24926686217008798
-0.24926686217008798 x 100 = -24.93%