-74.04% is the change from 339 to 88
Calculation steps:
[( 88 - 339 ) ÷ 339] x 100 = -74.04%
Formula
Percentage change = [(88 - 339) / 339] x 100
Subtract the new number by the original number
88 - 339 = -251
-251 ÷ 339 = -0.7404129793510325
-0.7404129793510325 x 100 = -74.04%