-23.21% is the change from 655 to 503
Calculation steps:
[( 503 - 655 ) ÷ 655] x 100 = -23.21%
Formula
Percentage change = [(503 - 655) / 655] x 100
Subtract the new number by the original number
503 - 655 = -152
-152 ÷ 655 = -0.23206106870229007
-0.23206106870229007 x 100 = -23.21%