-23.5% is the change from 451 to 345
Calculation steps:
[( 345 - 451 ) ÷ 451] x 100 = -23.5%
Formula
Percentage change = [(345 - 451) / 451] x 100
Subtract the new number by the original number
345 - 451 = -106
-106 ÷ 451 = -0.23503325942350334
-0.23503325942350334 x 100 = -23.5%