-66.95% is the change from 811 to 268
Calculation steps:
[( 268 - 811 ) ÷ 811] x 100 = -66.95%
Formula
Percentage change = [(268 - 811) / 811] x 100
Subtract the new number by the original number
268 - 811 = -543
-543 ÷ 811 = -0.6695437731196054
-0.6695437731196054 x 100 = -66.95%