-41.99% is the change from 543 to 315
Calculation steps:
[( 315 - 543 ) ÷ 543] x 100 = -41.99%
Formula
Percentage change = [(315 - 543) / 543] x 100
Subtract the new number by the original number
315 - 543 = -228
-228 ÷ 543 = -0.4198895027624309
-0.4198895027624309 x 100 = -41.99%