64.62% is the change from 407 to 670
Calculation steps:
[( 670 - 407 ) ÷ 407] x 100 = 64.62%
Formula
Percentage change = [(670 - 407) / 407] x 100
Subtract the new number by the original number
670 - 407 = 263
263 ÷ 407 = 0.6461916461916462
0.6461916461916462 x 100 = 64.62%