-1.62% is the change from 309 to 304
Calculation steps:
[( 304 - 309 ) ÷ 309] x 100 = -1.62%
Formula
Percentage change = [(304 - 309) / 309] x 100
Subtract the new number by the original number
304 - 309 = -5
-5 ÷ 309 = -0.016181229773462782
-0.016181229773462782 x 100 = -1.62%