-24.34% is the change from 456 to 345
Calculation steps:
[( 345 - 456 ) ÷ 456] x 100 = -24.34%
Formula
Percentage change = [(345 - 456) / 456] x 100
Subtract the new number by the original number
345 - 456 = -111
-111 ÷ 456 = -0.24342105263157895
-0.24342105263157895 x 100 = -24.34%