-91.58% is the change from 677 to 57
Calculation steps:
[( 57 - 677 ) ÷ 677] x 100 = -91.58%
Formula
Percentage change = [(57 - 677) / 677] x 100
Subtract the new number by the original number
57 - 677 = -620
-620 ÷ 677 = -0.9158050221565731
-0.9158050221565731 x 100 = -91.58%