-78.8% is the change from 382 to 81
Calculation steps:
[( 81 - 382 ) ÷ 382] x 100 = -78.8%
Formula
Percentage change = [(81 - 382) / 382] x 100
Subtract the new number by the original number
81 - 382 = -301
-301 ÷ 382 = -0.7879581151832461
-0.7879581151832461 x 100 = -78.8%