-31.35% is the change from 657 to 451
Calculation steps:
[( 451 - 657 ) ÷ 657] x 100 = -31.35%
Formula
Percentage change = [(451 - 657) / 657] x 100
Subtract the new number by the original number
451 - 657 = -206
-206 ÷ 657 = -0.3135464231354642
-0.3135464231354642 x 100 = -31.35%