-49.18% is the change from 972 to 494
Calculation steps:
[( 494 - 972 ) ÷ 972] x 100 = -49.18%
Formula
Percentage change = [(494 - 972) / 972] x 100
Subtract the new number by the original number
494 - 972 = -478
-478 ÷ 972 = -0.49176954732510286
-0.49176954732510286 x 100 = -49.18%