-57.61% is the change from 545 to 231
Calculation steps:
[( 231 - 545 ) ÷ 545] x 100 = -57.61%
Formula
Percentage change = [(231 - 545) / 545] x 100
Subtract the new number by the original number
231 - 545 = -314
-314 ÷ 545 = -0.5761467889908257
-0.5761467889908257 x 100 = -57.61%