-42.52% is the change from 548 to 315
Calculation steps:
[( 315 - 548 ) ÷ 548] x 100 = -42.52%
Formula
Percentage change = [(315 - 548) / 548] x 100
Subtract the new number by the original number
315 - 548 = -233
-233 ÷ 548 = -0.4251824817518248
-0.4251824817518248 x 100 = -42.52%