65.38% is the change from 78 to 129
Calculation steps:
[( 129 - 78 ) ÷ 78] x 100 = 65.38%
Formula
Percentage change = [(129 - 78) / 78] x 100
Subtract the new number by the original number
129 - 78 = 51
51 ÷ 78 = 0.6538461538461539
0.6538461538461539 x 100 = 65.38%