-70.43% is the change from 815 to 241
Calculation steps:
[( 241 - 815 ) ÷ 815] x 100 = -70.43%
Formula
Percentage change = [(241 - 815) / 815] x 100
Subtract the new number by the original number
241 - 815 = -574
-574 ÷ 815 = -0.7042944785276074
-0.7042944785276074 x 100 = -70.43%