-45.11% is the change from 501 to 275
Calculation steps:
[( 275 - 501 ) ÷ 501] x 100 = -45.11%
Formula
Percentage change = [(275 - 501) / 501] x 100
Subtract the new number by the original number
275 - 501 = -226
-226 ÷ 501 = -0.45109780439121755
-0.45109780439121755 x 100 = -45.11%