-46.5% is the change from 615 to 329
Calculation steps:
[( 329 - 615 ) ÷ 615] x 100 = -46.5%
Formula
Percentage change = [(329 - 615) / 615] x 100
Subtract the new number by the original number
329 - 615 = -286
-286 ÷ 615 = -0.46504065040650405
-0.46504065040650405 x 100 = -46.5%