-14.91% is the change from 456 to 388
Calculation steps:
[( 388 - 456 ) ÷ 456] x 100 = -14.91%
Formula
Percentage change = [(388 - 456) / 456] x 100
Subtract the new number by the original number
388 - 456 = -68
-68 ÷ 456 = -0.14912280701754385
-0.14912280701754385 x 100 = -14.91%