-64.98% is the change from 891 to 312
Calculation steps:
[( 312 - 891 ) ÷ 891] x 100 = -64.98%
Formula
Percentage change = [(312 - 891) / 891] x 100
Subtract the new number by the original number
312 - 891 = -579
-579 ÷ 891 = -0.6498316498316499
-0.6498316498316499 x 100 = -64.98%