-20.49% is the change from 771 to 613
Calculation steps:
[( 613 - 771 ) ÷ 771] x 100 = -20.49%
Formula
Percentage change = [(613 - 771) / 771] x 100
Subtract the new number by the original number
613 - 771 = -158
-158 ÷ 771 = -0.20492866407263294
-0.20492866407263294 x 100 = -20.49%