-49.61% is the change from 903 to 455
Calculation steps:
[( 455 - 903 ) ÷ 903] x 100 = -49.61%
Formula
Percentage change = [(455 - 903) / 903] x 100
Subtract the new number by the original number
455 - 903 = -448
-448 ÷ 903 = -0.49612403100775193
-0.49612403100775193 x 100 = -49.61%