-37.15% is the change from 541 to 340
Calculation steps:
[( 340 - 541 ) ÷ 541] x 100 = -37.15%
Formula
Percentage change = [(340 - 541) / 541] x 100
Subtract the new number by the original number
340 - 541 = -201
-201 ÷ 541 = -0.37153419593345655
-0.37153419593345655 x 100 = -37.15%