-29.75% is the change from 484 to 340
Calculation steps:
[( 340 - 484 ) ÷ 484] x 100 = -29.75%
Formula
Percentage change = [(340 - 484) / 484] x 100
Subtract the new number by the original number
340 - 484 = -144
-144 ÷ 484 = -0.2975206611570248
-0.2975206611570248 x 100 = -29.75%