-52.24% is the change from 312 to 149
Calculation steps:
[( 149 - 312 ) ÷ 312] x 100 = -52.24%
Formula
Percentage change = [(149 - 312) / 312] x 100
Subtract the new number by the original number
149 - 312 = -163
-163 ÷ 312 = -0.5224358974358975
-0.5224358974358975 x 100 = -52.24%