-57.14% is the change from 343 to 147
Calculation steps:
[( 147 - 343 ) ÷ 343] x 100 = -57.14%
Formula
Percentage change = [(147 - 343) / 343] x 100
Subtract the new number by the original number
147 - 343 = -196
-196 ÷ 343 = -0.5714285714285714
-0.5714285714285714 x 100 = -57.14%