228.13% is the change from 64 to 210
Calculation steps:
[( 210 - 64 ) ÷ 64] x 100 = 228.13%
Formula
Percentage change = [(210 - 64) / 64] x 100
Subtract the new number by the original number
210 - 64 = 146
146 ÷ 64 = 2.28125
2.28125 x 100 = 228.13%
Example