-24.49% is the change from 343 to 259
Calculation steps:
[( 259 - 343 ) ÷ 343] x 100 = -24.49%
Formula
Percentage change = [(259 - 343) / 343] x 100
Subtract the new number by the original number
259 - 343 = -84
-84 ÷ 343 = -0.24489795918367346
-0.24489795918367346 x 100 = -24.49%