-78.76% is the change from 339 to 72
Calculation steps:
[( 72 - 339 ) ÷ 339] x 100 = -78.76%
Formula
Percentage change = [(72 - 339) / 339] x 100
Subtract the new number by the original number
72 - 339 = -267
-267 ÷ 339 = -0.7876106194690266
-0.7876106194690266 x 100 = -78.76%