-24.95% is the change from 457 to 343
Calculation steps:
[( 343 - 457 ) ÷ 457] x 100 = -24.95%
Formula
Percentage change = [(343 - 457) / 457] x 100
Subtract the new number by the original number
343 - 457 = -114
-114 ÷ 457 = -0.24945295404814005
-0.24945295404814005 x 100 = -24.95%