42.32% is the change from 664 to 945
Calculation steps:
[( 945 - 664 ) ÷ 664] x 100 = 42.32%
Formula
Percentage change = [(945 - 664) / 664] x 100
Subtract the new number by the original number
945 - 664 = 281
281 ÷ 664 = 0.42319277108433734
0.42319277108433734 x 100 = 42.32%