-29.46% is the change from 482 to 340
Calculation steps:
[( 340 - 482 ) ÷ 482] x 100 = -29.46%
Formula
Percentage change = [(340 - 482) / 482] x 100
Subtract the new number by the original number
340 - 482 = -142
-142 ÷ 482 = -0.2946058091286307
-0.2946058091286307 x 100 = -29.46%