-29.48% is the change from 458 to 323
Calculation steps:
[( 323 - 458 ) ÷ 458] x 100 = -29.48%
Formula
Percentage change = [(323 - 458) / 458] x 100
Subtract the new number by the original number
323 - 458 = -135
-135 ÷ 458 = -0.29475982532751094
-0.29475982532751094 x 100 = -29.48%