-98.85% is the change from 260 to 3
Calculation steps:
[( 3 - 260 ) ÷ 260] x 100 = -98.85%
Formula
Percentage change = [(3 - 260) / 260] x 100
Subtract the new number by the original number
3 - 260 = -257
-257 ÷ 260 = -0.9884615384615385
-0.9884615384615385 x 100 = -98.85%