-84.15% is the change from 492 to 78
Calculation steps:
[( 78 - 492 ) ÷ 492] x 100 = -84.15%
Formula
Percentage change = [(78 - 492) / 492] x 100
Subtract the new number by the original number
78 - 492 = -414
-414 ÷ 492 = -0.8414634146341463
-0.8414634146341463 x 100 = -84.15%