-86.58% is the change from 380 to 51
Calculation steps:
[( 51 - 380 ) ÷ 380] x 100 = -86.58%
Formula
Percentage change = [(51 - 380) / 380] x 100
Subtract the new number by the original number
51 - 380 = -329
-329 ÷ 380 = -0.8657894736842106
-0.8657894736842106 x 100 = -86.58%