-78.04% is the change from 378 to 83
Calculation steps:
[( 83 - 378 ) ÷ 378] x 100 = -78.04%
Formula
Percentage change = [(83 - 378) / 378] x 100
Subtract the new number by the original number
83 - 378 = -295
-295 ÷ 378 = -0.7804232804232805
-0.7804232804232805 x 100 = -78.04%