-45.33% is the change from 450 to 246
Calculation steps:
[( 246 - 450 ) ÷ 450] x 100 = -45.33%
Formula
Percentage change = [(246 - 450) / 450] x 100
Subtract the new number by the original number
246 - 450 = -204
-204 ÷ 450 = -0.4533333333333333
-0.4533333333333333 x 100 = -45.33%