-78.16% is the change from 380 to 83
Calculation steps:
[( 83 - 380 ) ÷ 380] x 100 = -78.16%
Formula
Percentage change = [(83 - 380) / 380] x 100
Subtract the new number by the original number
83 - 380 = -297
-297 ÷ 380 = -0.781578947368421
-0.781578947368421 x 100 = -78.16%