178% is the change from 100 to 278
Calculation steps:
[( 278 - 100 ) ÷ 100] x 100 = 178%
Formula
Percentage change = [(278 - 100) / 100] x 100
Subtract the new number by the original number
278 - 100 = 178
178 ÷ 100 = 1.78
1.78 x 100 = 178%
Example