212.08% is the change from 207 to 646
Calculation steps:
[( 646 - 207 ) ÷ 207] x 100 = 212.08%
Formula
Percentage change = [(646 - 207) / 207] x 100
Subtract the new number by the original number
646 - 207 = 439
439 ÷ 207 = 2.1207729468599035
2.1207729468599035 x 100 = 212.08%