99.7% is the change from 333 to 665
Calculation steps:
[( 665 - 333 ) ÷ 333] x 100 = 99.7%
Formula
Percentage change = [(665 - 333) / 333] x 100
Subtract the new number by the original number
665 - 333 = 332
332 ÷ 333 = 0.996996996996997
0.996996996996997 x 100 = 99.7%