-53.61% is the change from 319 to 148
Calculation steps:
[( 148 - 319 ) ÷ 319] x 100 = -53.61%
Formula
Percentage change = [(148 - 319) / 319] x 100
Subtract the new number by the original number
148 - 319 = -171
-171 ÷ 319 = -0.5360501567398119
-0.5360501567398119 x 100 = -53.61%