-75.7% is the change from 502 to 122
Calculation steps:
[( 122 - 502 ) ÷ 502] x 100 = -75.7%
Formula
Percentage change = [(122 - 502) / 502] x 100
Subtract the new number by the original number
122 - 502 = -380
-380 ÷ 502 = -0.7569721115537849
-0.7569721115537849 x 100 = -75.7%