-62.7% is the change from 917 to 342
Calculation steps:
[( 342 - 917 ) ÷ 917] x 100 = -62.7%
Formula
Percentage change = [(342 - 917) / 917] x 100
Subtract the new number by the original number
342 - 917 = -575
-575 ÷ 917 = -0.6270447110141767
-0.6270447110141767 x 100 = -62.7%