-47.79% is the change from 339 to 177
Calculation steps:
[( 177 - 339 ) ÷ 339] x 100 = -47.79%
Formula
Percentage change = [(177 - 339) / 339] x 100
Subtract the new number by the original number
177 - 339 = -162
-162 ÷ 339 = -0.4778761061946903
-0.4778761061946903 x 100 = -47.79%