-54.18% is the change from 646 to 296
Calculation steps:
[( 296 - 646 ) ÷ 646] x 100 = -54.18%
Formula
Percentage change = [(296 - 646) / 646] x 100
Subtract the new number by the original number
296 - 646 = -350
-350 ÷ 646 = -0.541795665634675
-0.541795665634675 x 100 = -54.18%