-75.23% is the change from 856 to 212
Calculation steps:
[( 212 - 856 ) ÷ 856] x 100 = -75.23%
Formula
Percentage change = [(212 - 856) / 856] x 100
Subtract the new number by the original number
212 - 856 = -644
-644 ÷ 856 = -0.7523364485981309
-0.7523364485981309 x 100 = -75.23%