-74.34% is the change from 304 to 78
Calculation steps:
[( 78 - 304 ) ÷ 304] x 100 = -74.34%
Formula
Percentage change = [(78 - 304) / 304] x 100
Subtract the new number by the original number
78 - 304 = -226
-226 ÷ 304 = -0.743421052631579
-0.743421052631579 x 100 = -74.34%