-52.88% is the change from 312 to 147
Calculation steps:
[( 147 - 312 ) ÷ 312] x 100 = -52.88%
Formula
Percentage change = [(147 - 312) / 312] x 100
Subtract the new number by the original number
147 - 312 = -165
-165 ÷ 312 = -0.5288461538461539
-0.5288461538461539 x 100 = -52.88%