-57.94% is the change from 340 to 143
Calculation steps:
[( 143 - 340 ) ÷ 340] x 100 = -57.94%
Formula
Percentage change = [(143 - 340) / 340] x 100
Subtract the new number by the original number
143 - 340 = -197
-197 ÷ 340 = -0.5794117647058824
-0.5794117647058824 x 100 = -57.94%