-47.12% is the change from 607 to 321
Calculation steps:
[( 321 - 607 ) ÷ 607] x 100 = -47.12%
Formula
Percentage change = [(321 - 607) / 607] x 100
Subtract the new number by the original number
321 - 607 = -286
-286 ÷ 607 = -0.471169686985173
-0.471169686985173 x 100 = -47.12%