-76.05% is the change from 334 to 80
Calculation steps:
[( 80 - 334 ) ÷ 334] x 100 = -76.05%
Formula
Percentage change = [(80 - 334) / 334] x 100
Subtract the new number by the original number
80 - 334 = -254
-254 ÷ 334 = -0.7604790419161677
-0.7604790419161677 x 100 = -76.05%