-42.7% is the change from 541 to 310
Calculation steps:
[( 310 - 541 ) ÷ 541] x 100 = -42.7%
Formula
Percentage change = [(310 - 541) / 541] x 100
Subtract the new number by the original number
310 - 541 = -231
-231 ÷ 541 = -0.4269870609981516
-0.4269870609981516 x 100 = -42.7%