44.73% is the change from 664 to 961
Calculation steps:
[( 961 - 664 ) ÷ 664] x 100 = 44.73%
Formula
Percentage change = [(961 - 664) / 664] x 100
Subtract the new number by the original number
961 - 664 = 297
297 ÷ 664 = 0.44728915662650603
0.44728915662650603 x 100 = 44.73%