-29.96% is the change from 771 to 540
Calculation steps:
[( 540 - 771 ) ÷ 771] x 100 = -29.96%
Formula
Percentage change = [(540 - 771) / 771] x 100
Subtract the new number by the original number
540 - 771 = -231
-231 ÷ 771 = -0.29961089494163423
-0.29961089494163423 x 100 = -29.96%