-79.59% is the change from 387 to 79
Calculation steps:
[( 79 - 387 ) ÷ 387] x 100 = -79.59%
Formula
Percentage change = [(79 - 387) / 387] x 100
Subtract the new number by the original number
79 - 387 = -308
-308 ÷ 387 = -0.7958656330749354
-0.7958656330749354 x 100 = -79.59%