-80.56% is the change from 391 to 76
Calculation steps:
[( 76 - 391 ) ÷ 391] x 100 = -80.56%
Formula
Percentage change = [(76 - 391) / 391] x 100
Subtract the new number by the original number
76 - 391 = -315
-315 ÷ 391 = -0.8056265984654731
-0.8056265984654731 x 100 = -80.56%