-50.33% is the change from 451 to 224
Calculation steps:
[( 224 - 451 ) ÷ 451] x 100 = -50.33%
Formula
Percentage change = [(224 - 451) / 451] x 100
Subtract the new number by the original number
224 - 451 = -227
-227 ÷ 451 = -0.5033259423503326
-0.5033259423503326 x 100 = -50.33%