-99.62% is the change from 261 to 1
Calculation steps:
[( 1 - 261 ) ÷ 261] x 100 = -99.62%
Formula
Percentage change = [(1 - 261) / 261] x 100
Subtract the new number by the original number
1 - 261 = -260
-260 ÷ 261 = -0.9961685823754789
-0.9961685823754789 x 100 = -99.62%