-1.43% is the change from 350 to 345
Calculation steps:
[( 345 - 350 ) ÷ 350] x 100 = -1.43%
Formula
Percentage change = [(345 - 350) / 350] x 100
Subtract the new number by the original number
345 - 350 = -5
-5 ÷ 350 = -0.014285714285714285
-0.014285714285714285 x 100 = -1.43%