-22.41% is the change from 839 to 651
Calculation steps:
[( 651 - 839 ) ÷ 839] x 100 = -22.41%
Formula
Percentage change = [(651 - 839) / 839] x 100
Subtract the new number by the original number
651 - 839 = -188
-188 ÷ 839 = -0.22407628128724671
-0.22407628128724671 x 100 = -22.41%