34.64% is the change from 664 to 894
Calculation steps:
[( 894 - 664 ) ÷ 664] x 100 = 34.64%
Formula
Percentage change = [(894 - 664) / 664] x 100
Subtract the new number by the original number
894 - 664 = 230
230 ÷ 664 = 0.3463855421686747
0.3463855421686747 x 100 = 34.64%