-72.98% is the change from 840 to 227
Calculation steps:
[( 227 - 840 ) ÷ 840] x 100 = -72.98%
Formula
Percentage change = [(227 - 840) / 840] x 100
Subtract the new number by the original number
227 - 840 = -613
-613 ÷ 840 = -0.7297619047619047
-0.7297619047619047 x 100 = -72.98%