-29.98% is the change from 487 to 341
Calculation steps:
[( 341 - 487 ) ÷ 487] x 100 = -29.98%
Formula
Percentage change = [(341 - 487) / 487] x 100
Subtract the new number by the original number
341 - 487 = -146
-146 ÷ 487 = -0.2997946611909651
-0.2997946611909651 x 100 = -29.98%