-29.22% is the change from 486 to 344
Calculation steps:
[( 344 - 486 ) ÷ 486] x 100 = -29.22%
Formula
Percentage change = [(344 - 486) / 486] x 100
Subtract the new number by the original number
344 - 486 = -142
-142 ÷ 486 = -0.29218106995884774
-0.29218106995884774 x 100 = -29.22%