-48.94% is the change from 611 to 312
Calculation steps:
[( 312 - 611 ) ÷ 611] x 100 = -48.94%
Formula
Percentage change = [(312 - 611) / 611] x 100
Subtract the new number by the original number
312 - 611 = -299
-299 ÷ 611 = -0.48936170212765956
-0.48936170212765956 x 100 = -48.94%