-91.43% is the change from 828 to 71
Calculation steps:
[( 71 - 828 ) ÷ 828] x 100 = -91.43%
Formula
Percentage change = [(71 - 828) / 828] x 100
Subtract the new number by the original number
71 - 828 = -757
-757 ÷ 828 = -0.9142512077294686
-0.9142512077294686 x 100 = -91.43%