-85.71% is the change from 546 to 78
Calculation steps:
[( 78 - 546 ) ÷ 546] x 100 = -85.71%
Formula
Percentage change = [(78 - 546) / 546] x 100
Subtract the new number by the original number
78 - 546 = -468
-468 ÷ 546 = -0.8571428571428571
-0.8571428571428571 x 100 = -85.71%