-54.7% is the change from 457 to 207
Calculation steps:
[( 207 - 457 ) ÷ 457] x 100 = -54.7%
Formula
Percentage change = [(207 - 457) / 457] x 100
Subtract the new number by the original number
207 - 457 = -250
-250 ÷ 457 = -0.5470459518599562
-0.5470459518599562 x 100 = -54.7%