-70.09% is the change from 819 to 245
Calculation steps:
[( 245 - 819 ) ÷ 819] x 100 = -70.09%
Formula
Percentage change = [(245 - 819) / 819] x 100
Subtract the new number by the original number
245 - 819 = -574
-574 ÷ 819 = -0.7008547008547008
-0.7008547008547008 x 100 = -70.09%