-50.53% is the change from 655 to 324
Calculation steps:
[( 324 - 655 ) ÷ 655] x 100 = -50.53%
Formula
Percentage change = [(324 - 655) / 655] x 100
Subtract the new number by the original number
324 - 655 = -331
-331 ÷ 655 = -0.5053435114503817
-0.5053435114503817 x 100 = -50.53%