-7.39% is the change from 839 to 777
Calculation steps:
[( 777 - 839 ) ÷ 839] x 100 = -7.39%
Formula
Percentage change = [(777 - 839) / 839] x 100
Subtract the new number by the original number
777 - 839 = -62
-62 ÷ 839 = -0.07389749702026222
-0.07389749702026222 x 100 = -7.39%