-73.87% is the change from 819 to 214
Calculation steps:
[( 214 - 819 ) ÷ 819] x 100 = -73.87%
Formula
Percentage change = [(214 - 819) / 819] x 100
Subtract the new number by the original number
214 - 819 = -605
-605 ÷ 819 = -0.7387057387057387
-0.7387057387057387 x 100 = -73.87%