-19.47% is the change from 683 to 550
Calculation steps:
[( 550 - 683 ) ÷ 683] x 100 = -19.47%
Formula
Percentage change = [(550 - 683) / 683] x 100
Subtract the new number by the original number
550 - 683 = -133
-133 ÷ 683 = -0.19472913616398244
-0.19472913616398244 x 100 = -19.47%