-42.31% is the change from 546 to 315
Calculation steps:
[( 315 - 546 ) ÷ 546] x 100 = -42.31%
Formula
Percentage change = [(315 - 546) / 546] x 100
Subtract the new number by the original number
315 - 546 = -231
-231 ÷ 546 = -0.4230769230769231
-0.4230769230769231 x 100 = -42.31%