-75% is the change from 304 to 76
Calculation steps:
[( 76 - 304 ) ÷ 304] x 100 = -75%
Formula
Percentage change = [(76 - 304) / 304] x 100
Subtract the new number by the original number
76 - 304 = -228
-228 ÷ 304 = -0.75
-0.75 x 100 = -75%
Example