-90.87% is the change from 854 to 78
Calculation steps:
[( 78 - 854 ) ÷ 854] x 100 = -90.87%
Formula
Percentage change = [(78 - 854) / 854] x 100
Subtract the new number by the original number
78 - 854 = -776
-776 ÷ 854 = -0.9086651053864169
-0.9086651053864169 x 100 = -90.87%