-91.7% is the change from 819 to 68
Calculation steps:
[( 68 - 819 ) ÷ 819] x 100 = -91.7%
Formula
Percentage change = [(68 - 819) / 819] x 100
Subtract the new number by the original number
68 - 819 = -751
-751 ÷ 819 = -0.9169719169719169
-0.9169719169719169 x 100 = -91.7%