-39.53% is the change from 430 to 260
Calculation steps:
[( 260 - 430 ) ÷ 430] x 100 = -39.53%
Formula
Percentage change = [(260 - 430) / 430] x 100
Subtract the new number by the original number
260 - 430 = -170
-170 ÷ 430 = -0.3953488372093023
-0.3953488372093023 x 100 = -39.53%