-30.12% is the change from 488 to 341
Calculation steps:
[( 341 - 488 ) ÷ 488] x 100 = -30.12%
Formula
Percentage change = [(341 - 488) / 488] x 100
Subtract the new number by the original number
341 - 488 = -147
-147 ÷ 488 = -0.3012295081967213
-0.3012295081967213 x 100 = -30.12%