32200% is the change from 2 to 646
Calculation steps:
[( 646 - 2 ) ÷ 2] x 100 = 32200%
Formula
Percentage change = [(646 - 2) / 2] x 100
Subtract the new number by the original number
646 - 2 = 644
644 ÷ 2 = 322
322 x 100 = 32200%
Example