-50.83% is the change from 541 to 266
Calculation steps:
[( 266 - 541 ) ÷ 541] x 100 = -50.83%
Formula
Percentage change = [(266 - 541) / 541] x 100
Subtract the new number by the original number
266 - 541 = -275
-275 ÷ 541 = -0.5083179297597042
-0.5083179297597042 x 100 = -50.83%