-70.35% is the change from 833 to 247
Calculation steps:
[( 247 - 833 ) ÷ 833] x 100 = -70.35%
Formula
Percentage change = [(247 - 833) / 833] x 100
Subtract the new number by the original number
247 - 833 = -586
-586 ÷ 833 = -0.7034813925570228
-0.7034813925570228 x 100 = -70.35%