-0.65% is the change from 307 to 305
Calculation steps:
[( 305 - 307 ) ÷ 307] x 100 = -0.65%
Formula
Percentage change = [(305 - 307) / 307] x 100
Subtract the new number by the original number
305 - 307 = -2
-2 ÷ 307 = -0.006514657980456026
-0.006514657980456026 x 100 = -0.65%