-65.93% is the change from 813 to 277
Calculation steps:
[( 277 - 813 ) ÷ 813] x 100 = -65.93%
Formula
Percentage change = [(277 - 813) / 813] x 100
Subtract the new number by the original number
277 - 813 = -536
-536 ÷ 813 = -0.6592865928659286
-0.6592865928659286 x 100 = -65.93%