-39.74% is the change from 755 to 455
Calculation steps:
[( 455 - 755 ) ÷ 755] x 100 = -39.74%
Formula
Percentage change = [(455 - 755) / 755] x 100
Subtract the new number by the original number
455 - 755 = -300
-300 ÷ 755 = -0.3973509933774834
-0.3973509933774834 x 100 = -39.74%