-67.46% is the change from 839 to 273
Calculation steps:
[( 273 - 839 ) ÷ 839] x 100 = -67.46%
Formula
Percentage change = [(273 - 839) / 839] x 100
Subtract the new number by the original number
273 - 839 = -566
-566 ÷ 839 = -0.6746126340882003
-0.6746126340882003 x 100 = -67.46%