-63.1% is the change from 878 to 324
Calculation steps:
[( 324 - 878 ) ÷ 878] x 100 = -63.1%
Formula
Percentage change = [(324 - 878) / 878] x 100
Subtract the new number by the original number
324 - 878 = -554
-554 ÷ 878 = -0.6309794988610479
-0.6309794988610479 x 100 = -63.1%