99.7% is the change from 328 to 655
Calculation steps:
[( 655 - 328 ) ÷ 328] x 100 = 99.7%
Formula
Percentage change = [(655 - 328) / 328] x 100
Subtract the new number by the original number
655 - 328 = 327
327 ÷ 328 = 0.9969512195121951
0.9969512195121951 x 100 = 99.7%