-1.6% is the change from 312 to 307
Calculation steps:
[( 307 - 312 ) ÷ 312] x 100 = -1.6%
Formula
Percentage change = [(307 - 312) / 312] x 100
Subtract the new number by the original number
307 - 312 = -5
-5 ÷ 312 = -0.016025641025641024
-0.016025641025641024 x 100 = -1.6%