56.1% is the change from 410 to 640
Calculation steps:
[( 640 - 410 ) ÷ 410] x 100 = 56.1%
Formula
Percentage change = [(640 - 410) / 410] x 100
Subtract the new number by the original number
640 - 410 = 230
230 ÷ 410 = 0.5609756097560976
0.5609756097560976 x 100 = 56.1%