-69.04% is the change from 491 to 152
Calculation steps:
[( 152 - 491 ) ÷ 491] x 100 = -69.04%
Formula
Percentage change = [(152 - 491) / 491] x 100
Subtract the new number by the original number
152 - 491 = -339
-339 ÷ 491 = -0.6904276985743381
-0.6904276985743381 x 100 = -69.04%