-23.32% is the change from 656 to 503
Calculation steps:
[( 503 - 656 ) ÷ 656] x 100 = -23.32%
Formula
Percentage change = [(503 - 656) / 656] x 100
Subtract the new number by the original number
503 - 656 = -153
-153 ÷ 656 = -0.23323170731707318
-0.23323170731707318 x 100 = -23.32%