-91.77% is the change from 644 to 53
Calculation steps:
[( 53 - 644 ) ÷ 644] x 100 = -91.77%
Formula
Percentage change = [(53 - 644) / 644] x 100
Subtract the new number by the original number
53 - 644 = -591
-591 ÷ 644 = -0.9177018633540373
-0.9177018633540373 x 100 = -91.77%