-70.38% is the change from 834 to 247
Calculation steps:
[( 247 - 834 ) ÷ 834] x 100 = -70.38%
Formula
Percentage change = [(247 - 834) / 834] x 100
Subtract the new number by the original number
247 - 834 = -587
-587 ÷ 834 = -0.7038369304556354
-0.7038369304556354 x 100 = -70.38%