-14.66% is the change from 457 to 390
Calculation steps:
[( 390 - 457 ) ÷ 457] x 100 = -14.66%
Formula
Percentage change = [(390 - 457) / 457] x 100
Subtract the new number by the original number
390 - 457 = -67
-67 ÷ 457 = -0.14660831509846828
-0.14660831509846828 x 100 = -14.66%