235.94% is the change from 64 to 215
Calculation steps:
[( 215 - 64 ) ÷ 64] x 100 = 235.94%
Formula
Percentage change = [(215 - 64) / 64] x 100
Subtract the new number by the original number
215 - 64 = 151
151 ÷ 64 = 2.359375
2.359375 x 100 = 235.94%