-97.9% is the change from 334 to 7
Calculation steps:
[( 7 - 334 ) ÷ 334] x 100 = -97.9%
Formula
Percentage change = [(7 - 334) / 334] x 100
Subtract the new number by the original number
7 - 334 = -327
-327 ÷ 334 = -0.9790419161676647
-0.9790419161676647 x 100 = -97.9%