-29.61% is the change from 483 to 340
Calculation steps:
[( 340 - 483 ) ÷ 483] x 100 = -29.61%
Formula
Percentage change = [(340 - 483) / 483] x 100
Subtract the new number by the original number
340 - 483 = -143
-143 ÷ 483 = -0.29606625258799174
-0.29606625258799174 x 100 = -29.61%