109.38% is the change from 64 to 134
Calculation steps:
[( 134 - 64 ) ÷ 64] x 100 = 109.38%
Formula
Percentage change = [(134 - 64) / 64] x 100
Subtract the new number by the original number
134 - 64 = 70
70 ÷ 64 = 1.09375
1.09375 x 100 = 109.38%
Example