29.97% is the change from 664 to 863
Calculation steps:
[( 863 - 664 ) ÷ 664] x 100 = 29.97%
Formula
Percentage change = [(863 - 664) / 664] x 100
Subtract the new number by the original number
863 - 664 = 199
199 ÷ 664 = 0.2996987951807229
0.2996987951807229 x 100 = 29.97%