61.45% is the change from 415 to 670
Calculation steps:
[( 670 - 415 ) ÷ 415] x 100 = 61.45%
Formula
Percentage change = [(670 - 415) / 415] x 100
Subtract the new number by the original number
670 - 415 = 255
255 ÷ 415 = 0.6144578313253012
0.6144578313253012 x 100 = 61.45%