-40.73% is the change from 771 to 457
Calculation steps:
[( 457 - 771 ) ÷ 771] x 100 = -40.73%
Formula
Percentage change = [(457 - 771) / 771] x 100
Subtract the new number by the original number
457 - 771 = -314
-314 ÷ 771 = -0.4072632944228275
-0.4072632944228275 x 100 = -40.73%