-75.37% is the change from 337 to 83
Calculation steps:
[( 83 - 337 ) ÷ 337] x 100 = -75.37%
Formula
Percentage change = [(83 - 337) / 337] x 100
Subtract the new number by the original number
83 - 337 = -254
-254 ÷ 337 = -0.7537091988130564
-0.7537091988130564 x 100 = -75.37%