-29.31% is the change from 481 to 340
Calculation steps:
[( 340 - 481 ) ÷ 481] x 100 = -29.31%
Formula
Percentage change = [(340 - 481) / 481] x 100
Subtract the new number by the original number
340 - 481 = -141
-141 ÷ 481 = -0.29313929313929316
-0.29313929313929316 x 100 = -29.31%