-64.51% is the change from 913 to 324
Calculation steps:
[( 324 - 913 ) ÷ 913] x 100 = -64.51%
Formula
Percentage change = [(324 - 913) / 913] x 100
Subtract the new number by the original number
324 - 913 = -589
-589 ÷ 913 = -0.6451259583789705
-0.6451259583789705 x 100 = -64.51%