-14.98% is the change from 601 to 511
Calculation steps:
[( 511 - 601 ) ÷ 601] x 100 = -14.98%
Formula
Percentage change = [(511 - 601) / 601] x 100
Subtract the new number by the original number
511 - 601 = -90
-90 ÷ 601 = -0.1497504159733777
-0.1497504159733777 x 100 = -14.98%