221.88% is the change from 64 to 206
Calculation steps:
[( 206 - 64 ) ÷ 64] x 100 = 221.88%
Formula
Percentage change = [(206 - 64) / 64] x 100
Subtract the new number by the original number
206 - 64 = 142
142 ÷ 64 = 2.21875
2.21875 x 100 = 221.88%
Example