-62.68% is the change from 844 to 315
Calculation steps:
[( 315 - 844 ) ÷ 844] x 100 = -62.68%
Formula
Percentage change = [(315 - 844) / 844] x 100
Subtract the new number by the original number
315 - 844 = -529
-529 ÷ 844 = -0.6267772511848341
-0.6267772511848341 x 100 = -62.68%