-24.17% is the change from 451 to 342
Calculation steps:
[( 342 - 451 ) ÷ 451] x 100 = -24.17%
Formula
Percentage change = [(342 - 451) / 451] x 100
Subtract the new number by the original number
342 - 451 = -109
-109 ÷ 451 = -0.24168514412416853
-0.24168514412416853 x 100 = -24.17%