-15.31% is the change from 307 to 260
Calculation steps:
[( 260 - 307 ) ÷ 307] x 100 = -15.31%
Formula
Percentage change = [(260 - 307) / 307] x 100
Subtract the new number by the original number
260 - 307 = -47
-47 ÷ 307 = -0.15309446254071662
-0.15309446254071662 x 100 = -15.31%