-75.38% is the change from 861 to 212
Calculation steps:
[( 212 - 861 ) ÷ 861] x 100 = -75.38%
Formula
Percentage change = [(212 - 861) / 861] x 100
Subtract the new number by the original number
212 - 861 = -649
-649 ÷ 861 = -0.7537746806039489
-0.7537746806039489 x 100 = -75.38%