-66.46% is the change from 811 to 272
Calculation steps:
[( 272 - 811 ) ÷ 811] x 100 = -66.46%
Formula
Percentage change = [(272 - 811) / 811] x 100
Subtract the new number by the original number
272 - 811 = -539
-539 ÷ 811 = -0.6646115906288532
-0.6646115906288532 x 100 = -66.46%