-75.3% is the change from 834 to 206
Calculation steps:
[( 206 - 834 ) ÷ 834] x 100 = -75.3%
Formula
Percentage change = [(206 - 834) / 834] x 100
Subtract the new number by the original number
206 - 834 = -628
-628 ÷ 834 = -0.7529976019184652
-0.7529976019184652 x 100 = -75.3%