-28.66% is the change from 642 to 458
Calculation steps:
[( 458 - 642 ) ÷ 642] x 100 = -28.66%
Formula
Percentage change = [(458 - 642) / 642] x 100
Subtract the new number by the original number
458 - 642 = -184
-184 ÷ 642 = -0.2866043613707165
-0.2866043613707165 x 100 = -28.66%