150% is the change from 304 to 760
Calculation steps:
[( 760 - 304 ) ÷ 304] x 100 = 150%
Formula
Percentage change = [(760 - 304) / 304] x 100
Subtract the new number by the original number
760 - 304 = 456
456 ÷ 304 = 1.5
1.5 x 100 = 150%
Example