-12.86% is the change from 451 to 393
Calculation steps:
[( 393 - 451 ) ÷ 451] x 100 = -12.86%
Formula
Percentage change = [(393 - 451) / 451] x 100
Subtract the new number by the original number
393 - 451 = -58
-58 ÷ 451 = -0.1286031042128603
-0.1286031042128603 x 100 = -12.86%