-74.7% is the change from 834 to 211
Calculation steps:
[( 211 - 834 ) ÷ 834] x 100 = -74.7%
Formula
Percentage change = [(211 - 834) / 834] x 100
Subtract the new number by the original number
211 - 834 = -623
-623 ÷ 834 = -0.7470023980815348
-0.7470023980815348 x 100 = -74.7%