-95.12% is the change from 82 to 4
Calculation steps:
[( 4 - 82 ) ÷ 82] x 100 = -95.12%
Formula
Percentage change = [(4 - 82) / 82] x 100
Subtract the new number by the original number
4 - 82 = -78
-78 ÷ 82 = -0.9512195121951219
-0.9512195121951219 x 100 = -95.12%