64% is the change from 75 to 123
Calculation steps:
[( 123 - 75 ) ÷ 75] x 100 = 64%
Formula
Percentage change = [(123 - 75) / 75] x 100
Subtract the new number by the original number
123 - 75 = 48
48 ÷ 75 = 0.64
0.64 x 100 = 64%
Example