-31.51% is the change from 803 to 550
Calculation steps:
[( 550 - 803 ) ÷ 803] x 100 = -31.51%
Formula
Percentage change = [(550 - 803) / 803] x 100
Subtract the new number by the original number
550 - 803 = -253
-253 ÷ 803 = -0.3150684931506849
-0.3150684931506849 x 100 = -31.51%