-99.84% is the change from 612 to 1
Calculation steps:
[( 1 - 612 ) ÷ 612] x 100 = -99.84%
Formula
Percentage change = [(1 - 612) / 612] x 100
Subtract the new number by the original number
1 - 612 = -611
-611 ÷ 612 = -0.9983660130718954
-0.9983660130718954 x 100 = -99.84%