-50.12% is the change from 407 to 203
Calculation steps:
[( 203 - 407 ) ÷ 407] x 100 = -50.12%
Formula
Percentage change = [(203 - 407) / 407] x 100
Subtract the new number by the original number
203 - 407 = -204
-204 ÷ 407 = -0.5012285012285013
-0.5012285012285013 x 100 = -50.12%