-46.7% is the change from 591 to 315
Calculation steps:
[( 315 - 591 ) ÷ 591] x 100 = -46.7%
Formula
Percentage change = [(315 - 591) / 591] x 100
Subtract the new number by the original number
315 - 591 = -276
-276 ÷ 591 = -0.467005076142132
-0.467005076142132 x 100 = -46.7%