78% is the change from 100 to 178
Calculation steps:
[( 178 - 100 ) ÷ 100] x 100 = 78%
Formula
Percentage change = [(178 - 100) / 100] x 100
Subtract the new number by the original number
178 - 100 = 78
78 ÷ 100 = 0.78
0.78 x 100 = 78%
Example