-91.49% is the change from 834 to 71
Calculation steps:
[( 71 - 834 ) ÷ 834] x 100 = -91.49%
Formula
Percentage change = [(71 - 834) / 834] x 100
Subtract the new number by the original number
71 - 834 = -763
-763 ÷ 834 = -0.9148681055155875
-0.9148681055155875 x 100 = -91.49%