-99.9% is the change from 962 to 1
Calculation steps:
[( 1 - 962 ) ÷ 962] x 100 = -99.9%
Formula
Percentage change = [(1 - 962) / 962] x 100
Subtract the new number by the original number
1 - 962 = -961
-961 ÷ 962 = -0.998960498960499
-0.998960498960499 x 100 = -99.9%