-42.76% is the change from 891 to 510
Calculation steps:
[( 510 - 891 ) ÷ 891] x 100 = -42.76%
Formula
Percentage change = [(510 - 891) / 891] x 100
Subtract the new number by the original number
510 - 891 = -381
-381 ÷ 891 = -0.4276094276094276
-0.4276094276094276 x 100 = -42.76%