-19.48% is the change from 503 to 405
Calculation steps:
[( 405 - 503 ) ÷ 503] x 100 = -19.48%
Formula
Percentage change = [(405 - 503) / 503] x 100
Subtract the new number by the original number
405 - 503 = -98
-98 ÷ 503 = -0.19483101391650098
-0.19483101391650098 x 100 = -19.48%
Example