-31.19% is the change from 731 to 503
Calculation steps:
[( 503 - 731 ) ÷ 731] x 100 = -31.19%
Formula
Percentage change = [(503 - 731) / 731] x 100
Subtract the new number by the original number
503 - 731 = -228
-228 ÷ 731 = -0.3119015047879617
-0.3119015047879617 x 100 = -31.19%