-49.88% is the change from 405 to 203
Calculation steps:
[( 203 - 405 ) ÷ 405] x 100 = -49.88%
Formula
Percentage change = [(203 - 405) / 405] x 100
Subtract the new number by the original number
203 - 405 = -202
-202 ÷ 405 = -0.49876543209876545
-0.49876543209876545 x 100 = -49.88%