-41.45% is the change from 538 to 315
Calculation steps:
[( 315 - 538 ) ÷ 538] x 100 = -41.45%
Formula
Percentage change = [(315 - 538) / 538] x 100
Subtract the new number by the original number
315 - 538 = -223
-223 ÷ 538 = -0.4144981412639405
-0.4144981412639405 x 100 = -41.45%