-84.01% is the change from 494 to 79
Calculation steps:
[( 79 - 494 ) ÷ 494] x 100 = -84.01%
Formula
Percentage change = [(79 - 494) / 494] x 100
Subtract the new number by the original number
79 - 494 = -415
-415 ÷ 494 = -0.840080971659919
-0.840080971659919 x 100 = -84.01%