-74.24% is the change from 819 to 211
Calculation steps:
[( 211 - 819 ) ÷ 819] x 100 = -74.24%
Formula
Percentage change = [(211 - 819) / 819] x 100
Subtract the new number by the original number
211 - 819 = -608
-608 ÷ 819 = -0.7423687423687424
-0.7423687423687424 x 100 = -74.24%