-54.32% is the change from 648 to 296
Calculation steps:
[( 296 - 648 ) ÷ 648] x 100 = -54.32%
Formula
Percentage change = [(296 - 648) / 648] x 100
Subtract the new number by the original number
296 - 648 = -352
-352 ÷ 648 = -0.5432098765432098
-0.5432098765432098 x 100 = -54.32%