128.21% is the change from 78 to 178
Calculation steps:
[( 178 - 78 ) ÷ 78] x 100 = 128.21%
Formula
Percentage change = [(178 - 78) / 78] x 100
Subtract the new number by the original number
178 - 78 = 100
100 ÷ 78 = 1.2820512820512822
1.2820512820512822 x 100 = 128.21%