-48.72% is the change from 979 to 502
Calculation steps:
[( 502 - 979 ) ÷ 979] x 100 = -48.72%
Formula
Percentage change = [(502 - 979) / 979] x 100
Subtract the new number by the original number
502 - 979 = -477
-477 ÷ 979 = -0.48723186925434114
-0.48723186925434114 x 100 = -48.72%