-91.5% is the change from 612 to 52
Calculation steps:
[( 52 - 612 ) ÷ 612] x 100 = -91.5%
Formula
Percentage change = [(52 - 612) / 612] x 100
Subtract the new number by the original number
52 - 612 = -560
-560 ÷ 612 = -0.9150326797385621
-0.9150326797385621 x 100 = -91.5%