-75.33% is the change from 839 to 207
Calculation steps:
[( 207 - 839 ) ÷ 839] x 100 = -75.33%
Formula
Percentage change = [(207 - 839) / 839] x 100
Subtract the new number by the original number
207 - 839 = -632
-632 ÷ 839 = -0.7532777115613826
-0.7532777115613826 x 100 = -75.33%