-37.76% is the change from 339 to 211
Calculation steps:
[( 211 - 339 ) ÷ 339] x 100 = -37.76%
Formula
Percentage change = [(211 - 339) / 339] x 100
Subtract the new number by the original number
211 - 339 = -128
-128 ÷ 339 = -0.3775811209439528
-0.3775811209439528 x 100 = -37.76%