64.4% is the change from 604 to 993
Calculation steps:
[( 993 - 604 ) ÷ 604] x 100 = 64.4%
Formula
Percentage change = [(993 - 604) / 604] x 100
Subtract the new number by the original number
993 - 604 = 389
389 ÷ 604 = 0.6440397350993378
0.6440397350993378 x 100 = 64.4%