395.52% is the change from 134 to 664
Calculation steps:
[( 664 - 134 ) ÷ 134] x 100 = 395.52%
Formula
Percentage change = [(664 - 134) / 134] x 100
Subtract the new number by the original number
664 - 134 = 530
530 ÷ 134 = 3.955223880597015
3.955223880597015 x 100 = 395.52%