-83.2% is the change from 637 to 107
Calculation steps:
[( 107 - 637 ) ÷ 637] x 100 = -83.2%
Formula
Percentage change = [(107 - 637) / 637] x 100
Subtract the new number by the original number
107 - 637 = -530
-530 ÷ 637 = -0.8320251177394035
-0.8320251177394035 x 100 = -83.2%