-91.87% is the change from 627 to 51
Calculation steps:
[( 51 - 627 ) ÷ 627] x 100 = -91.87%
Formula
Percentage change = [(51 - 627) / 627] x 100
Subtract the new number by the original number
51 - 627 = -576
-576 ÷ 627 = -0.9186602870813397
-0.9186602870813397 x 100 = -91.87%