-75.85% is the change from 501 to 121
Calculation steps:
[( 121 - 501 ) ÷ 501] x 100 = -75.85%
Formula
Percentage change = [(121 - 501) / 501] x 100
Subtract the new number by the original number
121 - 501 = -380
-380 ÷ 501 = -0.7584830339321357
-0.7584830339321357 x 100 = -75.85%