63.93% is the change from 610 to 1000
Calculation steps:
[( 1000 - 610 ) ÷ 610] x 100 = 63.93%
Formula
Percentage change = [(1000 - 610) / 610] x 100
Subtract the new number by the original number
1000 - 610 = 390
390 ÷ 610 = 0.639344262295082
0.639344262295082 x 100 = 63.93%